It didn't work at first
926952
I almost sent this back....I've had it about 2 weeks now, and during the first couple days of use, it wasn't calculating anything correctly. I was 2 miles away from home, and it was saying I was 655 miles away!  I was determined to hang in there, and keep trying, however. I've watched all kinds of video testimonials on this thing, and read the reviews. Some people think it works great. Others think it's garbage. I have a couple of other full-fledged GPS units, so I know that calibration is a big part of having it work correctly. I was doing the figure-8's and everything.....still wasn't working. Then, one day I took out the batteries, waited a minute for it to do a re-set, and then put the batteries back in. After that, it has been working as well as the best reviews have indicated it should. Not perfect, but pretty darn good. I continue to put it through its paces, and it even acquires the satellites from inside my house, at times. Obviously, it's going to work best when you're outside, with a clear view of the sky. I would say that whoever REALLY wants one of these, should get it. It's a good device, especially for the money.
2655373
It was good packaging and looked good condition but when I first started to use it, it didn't really work because my friends couldn't hear me. So I reread the direction and did everything the way it had to be but still didn't work. So I looked up some solutions at Xbox.com and everything still seemed the way it was so I just tried to use it again and it started to work I don't know how but it did.
4239926
It worked fine for a few months, now it won't work. I have changed the batteries and tried it with another computer.
2592859
I did work eventually after a bit of tweaking. As soon as I plugged in, it popped up with instructions in French. I had no idea how to reset it it. The manual reset button in the back of the box didn't work either. I downloaded and updated the firmware update via my laptop which set everything back to English. Working fine after that.
2262238
for some reason it worked the first time but not after and I had my water tested it was fine
219497
I loved it, it worked when i first tried it. After I charged it the flash light will work but it doesn't taze.
669403
For some reason, it only worked the first time I tried it.  When I needed it for a real bug, it didn't work!
3121228
Product is relatively new to me. I had a difficult time programming the keypad. I have a rather old garage door opener. I followed the instructions and must have tried it about 10 times. I decided to give it one last try and suddenly it worked. I am not certain if it was an issue on my part of going too fast, too slow, holding keys in longer, but it did finally work. Its working good now.
427769
Out of the box it connected for about a minute, then stopped working. Batteries are new, so that's not the problem. Tried resyncing it, that didn't help and now the laptop won't even see it. Needless to say, this will be going back.

UPDATE: After messing with it more, I finally got it to connect and stay connected. It should not have been this difficult. I'll update again if it fails again.
1801607
I was very excited when I saw This product so I ordered it immediately, but once it arrived I just couldn't get it to work. I returned it
3721426
It worked at first, but the second & third times I tried to use it it didn't work.  At least I was able to get all of my pics and vids off that old IDE drive.
541783
I didn't need it for the first few months but the first time I eventually plugged it in, I realized it didn't work, and it was too late for a refund/replacement. I might have just gotten a defective one, but make just make sure you try it as soon as you get it.
628487
I held off on  a  review because I came close to returning it.  Finally after a month it was working properly.  Don't know why it didn't work properly at first and why it started working.  Maybe it sensed I was going to return it.  Don't think I'd recommend it for people without patience and a little outside the box thinking.
3873012
I have Toshiba laptop with Vista. Originally when I plugged this in and waited for the drivers to install it didn't work. I was little miffed, and visited the companies website with little help (very lacking in information). I unplugged it and plugged it in again. It installed a second time, and THEN it worked. Functions fine after that, but I almost threw it away thinking it would not work.
324665
It workde but not perfectly. Once I pushed it hard It fixed and works nicely.
659619
it took three tries but finally this one works. be sure you purchase the right product
1465725
If it worked fine, it would have been great. However, after the first night it wouldn't work any more. I tried all the steps I could find online, but the red light would just blink and it wouldn't heat up. I even left it unplugged all day, plugged it back in, and after about a minute the red light was blinking again. I might have just gotten a defective one, but I sent it back.