I have been using gopro studio and iMovie . My old lady got me Final Cut Pro X just started playing with it I can say it dose way more than I will ever need .
I've been using iMovie and have been pretty happy.
For the FCP folks, what does it give you over iMovie? Is it easy to use and intuitive, or do you really need to be into video editing to make good use of it? I was thinking about making the leap, but for $300 it needs to be a big difference. Maybe the free trial will answer my questions.
Final Cut Pro *is* intuitive...once you get used to it. There's a learning curve, but once you "get" it, it makes total sense!
For most people, iMovie is a great place to start. The most recent version of iMovie has lots of features that FCP has, and it handles GoPro footage very well.