Pros: GPS is accurate, daytime video is ok, operation is easy, playback is good with supplied software, audio capture is good, can save 7-8 hours on a 16GB .

Cons: No built in battery (only works when connected to power supply), no video display so you guess where it is pointing, the video at night is poor and glary. The video can skip frames using a SDHC class 4 memory card (better to use a higher rating like class 6 or better) but is acceptable.

Bottomline: I mainly use this unit for mapping, and it is perfect for this function. It will also record all data accurately, in case of an accident. I use the GPS log to create the route on a map, and the video and audio to check accuracy and features. I was happy enough with this product so I bought a second one. (Posted on 7/16/11)