I have/had many flight controls, Hoverfly Pro, MK, YS-X6, NAZA, Autoquad and APM. I test these a lot, on small quads and big octos, and I have to say that arducopter is getting better and better and I'm all for open source plataforms like Autoquad and Ardupilot. The speed of these open projects can't be matched and the performance differences between the early APM and the current APM is incredible, so big that I was comfortable to use APM during 2 days instead YS-X6 or Hoverfly Pro that I'm used to. And it worked really well. 

The flying parts of the video were made with a heavy lift hexa + Ardupilot and a hoverfly pro as gimbal controller (not hoverfly gimbal) it is from a big motorcycle event in Brazil. 

I couldn't preview my video embeebed, so please some moderator embed it for me? 

http://www.youtube.com/watch?v=A5AZ8VEQ28A

Av Air Films