I have heard that the GoPro Hero 3 camera is better than the camera on the Vision +. Is that true? I like the fact that the Vision + is ready to fly and requires no assembly, but I am a documentary film maker and would prefer the best quality video if there is a difference. Thanks for any comments you have.

look at youtube there are lots of comparisons

I am pretty sure the GoPro, especially the 4 is superior based on videos I have seen, I know what I would do if doing it over again, that said, no regrets with my P2V+ as an out of the box solution that works.