Conclusion: The HD Hero2 is unchanged in the important ways from the original camera. It's still got the best picture quality of any camera of its type, and it's one of the most usable sports and fitness cameras out there too. The choice of housings and mounts mean that this will suit anyone who does any sort of outdoor activity and wants to record it. But it will also suit anyone who wants to get a camera where a traditional machine won't fit.
Pros: Well designed, superb picture quality, simple to use and reliable
Cons: Menus and buttons are fiddly, monitor is optional extra, battery life can be average at best