This video shows the vision quality of the FatShark Camera that comes with Hobby King's Fat Shark Predator RTF FPV Headset System w/Camera and 5.8G TX. For what its worth the quality isn't great in the sense that it doesn't seem to handle contrast very well at all and the fact that the vision isn't sharp. Now having said that, I'm still more than happy with the pricing because I still scored a 100mw 5.8Ghz TX. I guess the great thing about it is the fact that for $30 more than just the stock Predators, I got an FPV system for my Mini Skywalker and at the end of the day it works.
In any case I hope this gives you a better idea of what you can expect.