I used the camera on the bike the first time by mounting on the front of the bike. Due to the lack of image stabilization, the video picked up so much vibration from the road and the bike it wasn't really usable. Kind of makes you sick if you watch it.
I played around with the included accessories and was able to mount the camera on my helmet which helped a lot with the vibration but image stabilization would still be a nice feature. When the camera is in the included case (Underwater case), the sound is not very good. I honestly haven't used the camera outside of the case other than removing it to download the videos.
The batteries seem to last a decent amount of time. I have had a few instance where reading the SD card was a problem, however, I just plugged the camera into the computer and was able to download the videos without any issues.
I would also have liked to see the camera with Bluetooth instead of wifi. You can view your camera using your smartphone, however, you must connect to the camera using it's built-in wifi which disconnects your phone from 4G. This causes issues if you are streaming music or needing to make GPS changes.
Overall, this is a good, much cheaper alternative to a Go Pro and for $50, how could you go wrong. If you buy it and decide you need something better, you can always give it to someone else to use.