I have gopro and in a short review Id say it is great, It is a good little camera that I am still playing around with to get best results, but Best parts of this camera are

1, The Quality & wide angle lens, You can really get lots in the picture if things are up close. If they are not up close sometimes it hard to see what you just filmed. This is why its great for car chase (reason I had to have it). Wide range of motion can be captured. High quality video in HD with a still picture. 1080P quality and a number of lesser quality capture modes in order to save space on your SD card. The clarity of the shots are just amazing. Beautiful picture quality directly onto SD card. It is very easy to get into the computer, supplied with a USB cable for quick transfers. You could film a video and have it on your computer in minutes. Upload to YouTube and link away in a forum or email to show your friends extremely quick. It's no cannon GL1 but it does a decent job.

2, Second best part is the water proof or somewhat damage proof case that enables you to mount it and not worry about it being damaged. Opening the case to plug the camera into the computer can be little tedious at times but I feel better knowing its protected. The case has a rubber gasket sealing the door closed and a clasp that ensures a tight fit. The effort it takes to get the camera into the little case is piece of mind that its sealed up tight and nothing will damage the camera. For non waterproof use, they supply you with a different rear door to the case that has an opening (skeleton door). I have not used this yet but I presume it's to allow better sound into the MIC of the camera.

3, Kit Comes with a bunch of neat angle swivel mounts and it can help you get the best angle placement of the camera, They also have a selection of great mounts available off the site so you can have the camera at any angle, almost any direction or any place you desire. The kit supply you with a suction cup mount that allows you to mount the camera on nearly any flat surface. This makes it very useful for mounting on the side or top of your car. They offer rollbar mounts and helmet mounts on gopro.com. Plus the kit comes with five sticky mounts that you can put anywhere aswell.

4, Great camera for pictures and action photo sequences not just video. At 11 Mega pixel it's not lacking in the photo quality department. You will be surprised at how clear an inexpensive little dual purpose camera can be. The camera mode allows you to take burst shots, timed interval sequences and regular timed single pictures in a few different timing modes. It's no professional digital cannon EOS camera but again it does a decent job.

5,Sound is bit muffled when inside the waterproof case, Seems that thus far, from my own experience, the sound quality may not be the best. On the back of HD Hero2 it says for best sound in high wind >100mph wind use waterproof case and best sound <100MPH use skeleton door. As you may imagine sound in the video shot to be bit quiet given that the camera is in a tightly sealed case to prevent water in. So you still get sound when in the waterproof case but its just not as loud as it would be if you used the other case backing (non water proof skeleton door) with the hole in it. Again, I have not used the skeleton door yet so I cannot confirm the sound quality with it vs without it.

I hope this quick review will help, I know it's poorly written and quickly done but Overall I love this little camera, I think teamed with the RENNLINE towhook mount, It will make some great action shots and trailing videos out on track. I cant wait to get back out on track in GT3 with it attached to my front bumper or mounted to my rollbar. I think it's a must have for the price. Good luck.