I have had two for the past year and a half. The technology is moving fast in these little things and the market can't hardly keep up. What was good then is now crappy by today's standards, much like laptop development was. However, they are now at a point that I think the quality is acceptably good and the prices should start falling again. I think the G-meter is the worst idea, on a bumpy road it keeps starting a new protected file every few seconds, and if its stopped and gets hit while shut off it won't record anything in time. I look for the ability to save 10-15 minute file clips, short 3 minute clips tend to show any crashes and the after-action spread over several files. I don't use or need the GPS function either. I DO want a clear picture with good to great color range and definition. With some of them (many of them?), the models are "HD" but only in image size and not in resolution. Basically I want a GoPro that continuously records and overwrites old files. I haven't had to use mine yet in court or with the police, but I am a believer in them.