I bought this HD camera to replace a VholdR Wearable Camcorder (Black) which didn't survive getting run over by my SUV. The Hero is a well constructed camera, very solid feeling with quality construction.
Pros: The camera has four modes - video (in several resolutions), still pictures, self-timer still pictures, and interval photos (pictures every few seconds). The lens gives a tremendously wide wild view which is nice for HD's 9:16. It will shoot 1080p, 960p 720p (at 30 and 60 frames per second), and 480 (at 60 frames per second) line resolutions. It uses standard SDHC memory cards and has an internal battery which recharges via a USB cable. The recorded audio is very good both inside and outside of the motor sports waterproof case that came with my kit. Video is relatively good, not as vivid as a dedicated camcorder but the resolution is good. My kit came with a variety of mounts and a suction cup mount for windows and car body use. The waterproof case comes with two backs, one that is watertight and one that is not for better audio when waterproof use isn't required. The kit comes with connectors for connecting the camera up to an HDTV monitor (component video) or a TV monitor (composite video). A neat feature in the menu is that you can flip both the video and still photos so you can shoot with the camera upside down without a problem.
Cons: The quick release mounts have a bit of wiggle to them. The back of the waterproof case can be difficult to lock closed. The menu system is a bit troublesome to use as there are only two buttons and three LCD characters to use. Once set you'll not have to go into the menu very often.
Future: There's a connector on the rear that GoPro plans on using for an external battery or a monitor. Neither are available at the time of this review but they are being worked on.
In use on the trail the mounts worked very well. I used the suction cup primarily to mount the camera to my windshield, bumper, side body panel, and side window. Across rugged rocky trails the camera held firm and the video came out very well. The simple interface was easy enough to use. One button to turn the camera on and select the mode and another to stop and start the recording.