Customer Reviews
Unique features+performance comparable with high end units 
2007-09-13
The GPS with speed camera detection & red light camera location detection helps provide the stimulation like free cup of coffee that you can't buy with other high end one's- shame on them. I bought this not because it was cost effective from reputable web site but because of its unique features (free updates+camera location detection that you can't buy with expensive units. (I did buy the extended warranty just in case).Also, for the info- I also own valentine one. Those 2 keep me good company on the long trips, highways(+285,275...) or new roads. I have NEVER recieved traffic tickets and usually I do not drive crazy.
Now, I can enjoy the roads & beutiful world even more- worry free
I took it back! 
2007-09-10
So, I'm always up for trying new products. The saleswoman tried to talk me out of it, but I decided to give this thing a try anyway, choosing it over a TomTom or a Garmin. Big mistake. It's nice looking, and it purports to have some newer features that other GPS systems at this price range do not have (like speed and red light cameras). However, these features NEVER worked for me, and I happen to know that there are THREE red light cameras at the intersection nearest my home. Not once did this thing catch them.
Another thing: it kept getting me lost! Sometimes the route it suggested was obviously wrong, and if I tried to ignore it, it would repeatedly yell- "PLEASE TURN AROUND!" or something similarly annoying. And if I did miss a turn accidently, and could not immediately stop to give it a chance to reroute, it would freak out and take many minutes before it could recalculate the route.
All things considered, I returned this system within a week. Maybe it was defective. Who knows? But now I am afraid of shelling out another couple of hundred of dollars for another system... So if you want to purchase a gps and get your money's worth, I'd say get one whose name you can trust.
My Review Of The Cobra GPSM 2100 
2007-09-04
It seems to do the job that I wanted it for; although I have not had the cance to put the 2100 through a good road trip. It's a little smaller than I had envisioned, but maybe I'm not a good visionary.
So far, so good, some minor glitches but good bang for the buck.. 
2007-07-21
I received this unit as a gift about two weeks ago. I had previously borrowed my nephew's Garmin NUVI and enjoyed that unit. However, the price of it had put me off until I did more research. Then I received this great gift. I have owned a Cobra radar unit for almost ten years now and it still works great, so I was pleased to receive this Cobra unit.
This GPS unit DID NOT work right out of the box. I was using an adapter in my cigarette lighter which allows me to operate two devices at once. I'm still not sure why, but the unit would not function when plugged in using this adapter. After I unplugged the adapter and made the GPS unit the only device it worked great. I instantly saw my location. I used the touch screen to plug in a local address, and the unit instantly advised me which route to take. The computerized voice is clear and easy to understand.
Once I unplugged the unit, and plugged it in again using the multi-adapter, it worked fine, so I can now use the radar and GPS at the same time. I used the unit to take a trip of 200 miles the other day and the directions were great. It also gave me local gas stations, and a Staples store to buy some office supplies.
The unit comes with an AC adapter as well, so you can add addresses in your home. The unit is not as sophisticated as the Nuvi. It lacks the detail on some maps, the screen is not quite as bright and clear, and it doesn't play music or let you use the internet. But is is accurate, affordable and easy to use. Highly recommended!
Starts out ok, but doesn't last long 
2007-06-30
When I first tried out this GPS, I was quite happy with it. It was very simple to use, easy to learn and really just plug and go. It got us halfway to Big Bear from LA, but then got us lost because the freeways had closed. I found it to be accurate in some places, and truly not in others. It froze up quite a few times, and wouldn't turn on SEVERAL times, only to turn on a minute later. The time it takes to start up is fine, only about a minute and you're already "navigating." However, sometimes it just lags and, again, freezes up. Had I written a review the first day I got it, I would have given it at least 4 stars for the ease of use. Now that I've had it a week, I'm returning it, and am going back to using mapquest. It's just not worth 300 something dollars. Perhaps I'll try another GPS system when we're taking another trip, but for now, this one is definitely going back.
cobra 
2008-06-11
i had gotten this as gift for my husband. he absolutely loves it and uses for long trips and occasionally for our short trips around the local area.
his biggest kick is when he is taking a shorter and faster route to the main road and the cobra voice tells him to go another way.
Some nice features..but 
2008-02-08
I bought this GPS for a trip from Maine to Florida. Although it took me on a good route through CT and gave me detailed info about upcoming turns, this thing took me through the middle of Washingon DC during morning rush hour. When I got to Florida, for some unknown reason this thing wouldn't tell me the next turn until I had passed the intersection. I'm better off with Mapquest.
Don't get this item 
2008-01-14
I tried to use the COBRA and was disapointed. We tried to look for restaurants and the three places we tried were not in the system. When we tried to enter a restaurant we knew was at a certain location, the COBRA did not recognize the place we were looking for. Also, the unit told us to go to the "highlighted street" after entering a selected restaurant but did not direct us (as a gps should) to the street. One street we were directed to was not an actual street and had rocks across the road so we could not drive down the street and had to redirect ourselves another way.
So disappointed...great technology but terrible interface 
2007-10-30
This is one of the most disappointing electronic devices I've ever bought. The unit works fine and for getting Grandma from one place to another it is a cute toy. I drive a tractor trailer and if any truckers are considering this unit, just don't. For one thing, the unit will not allow you to select an exit number on a given interstate as a destination. The exits are in the database, it calls off the exits when you have to use one, just doesn't let you find them. Truckstops are listed by interstate# and exit# (not street address) in the guidebooks. Also, very often industrial warehouse sites are not listed by street address and the unit can't find anything without a street number. I now have my old 2002 GarminV with it's outdated maps and impossibly small memory capacity sitting next to the new Cobra so I can use that interface to find exits and plan destination time estimates before moving (the cobra will not display eta times until you get to a spot where your next turn is more than a mile away). Very frustrating. I wonder if there are any parts sharp enough to damage my tire if I drive over it?
It Ain't No Garmin! 
2007-10-05
My Garmin 340C was stolen from my car and I took a chance on the Cobra. It works (sometimes) but software and graphics are far inferior to what I had gotten used to.
On the plus side, some nice features like choice of a category and listing of all in that category in your area. The graphics, if you don't use the 3D version, are fairly good. And it's pretty sensitive in homing in on the satellites, even when you're indoors.
But, the shortcomings leave me disappointed. For openers, when I set it for "home" in my driveway, it puts me on a street 1000' away that doesn't come into my area. So, if I set it with "home" as a destination, I wind up in someone else's driveway.
The Garmin allows you to plug in a destination and when you let it calculate a route, it gives you mileage and an ETA before you start. Not so with the Cobra. Once you start, it will show an ETA but if there's a way to show the mileage to get there, I haven't found it. The Garmin "speaks" all roads you're directed to use. The Cobra "speaks" only Interstates but has a visual display of the names of all. Another annoyance is that the "zoom" feature keeps resetting itself to a larger area of display. May be a software glitch but not fixable by any of their downloads to date. Garmin offers all sorts of language options: Australian woman speaking with Finnish display; German man speaking with Spanish display, etc. But these are really gimmicks and not necessary.
The Cobra is available for somewhat less than the Garmin. And it shows.