I've seen these on display. Cannot comment on how good they are, but I was also looking at the go pro.
Then I found the TCL-SVC200, and I can't say I'm disappointed so far. It cost me £100 off ebay (also was available on amazon), chinese seller, arrived in less than a week.
Comes with remote, sticky-backed mount (helmet), waterproof case, car windscreen mount (cam has car mode to record 1min clips), and a handlebar mount, which is what I use mostly on the bike.
One of the best reviews is on techmoan, here:
http://www.techmoan.com/blog/2013/11/10/svc200-is-the-best-100-action-camera-ive-found-so-far.htmlEven better is that because it has a tripod thread built in, you can buy little adapters to use go pro mounts! My bike already had one stuck on the screen, so once the adapters arrive, I will be able to mount cam on front of bike.
Not taken any super interesting videos but a screen shot is on the topic "What did you do with your fazer today?"