I received this as a rather unexpected gift and I'm pleased to report its quite fun.
It takes a while to get the hang of flying, and until you do you're likely to have a few crashes, I've had plenty but the appcopter continues to work every time, without damage.
The app had no problem to download.
The appcopter hovers and moves around the room with a great sense of satisfaction. It reacts quite quickly so you can power down the moment you're about to accidently hit something!
I guess the only complaint is the instructions on the back of the box differs from the app in the app store, which is newer, I strongly recommend going to the home page, clicking on the top right 'nut' icon, and then reducing the sensitivity from 5 to 2. Also its not that clear that the arrows on the home page is trim and to adjust them if your copter is slowly turning on its own.
Cool Gift, would recommend.