I use the "Loiter" more quite a bit when I am shooting video. And I use GPS to bring it back to me quickly. Generally, I fly in Altitude Hold when I am just playing around. She responds much better.

My IRIS is heavily modified. So, if that's your thing. The IRIS is the way to go...

Nice video, I'm about to get an IRIS, was wondering if you fly in GPS mode where it makes the copter steady?, not get out of hand.