I gave this Helmet Camera 4 stars because it is the best helmet camera on the market right now as far as I am concerned. It is not, however, the best potential camera that GoPro could make.
It has better quality footage than any other helmet camera, but its not that durable (I have broken 3), the way they let you mount it all take way too long to set up, they need to make the case close more securely. They should make the sensor larger, they should make the body a perfect square instead of a rectangle (that way you can set it up on the side or on top of your helmet easier). They should put bluetooth in it so that you can stream video to your phone (rather than use a gimmicky LCD screen attached to the back). They should give it 60fps 1080p and 960p video (so that we dont' have to use 720p just to get decent footage).