Instructions are very clear. Easy to use. It came with a second battery, which is great as backup charges while you are playing with the drone and it's ready to go again soon after the first battery quits.
Fibers and hairs will get caught up in the wings and cause directional issues. But it's an easy fix, just remove the wings and clean then off and it goes again as it should.
That's some world-class feedback. You are awesome! - The Force1 Team