While I'm still very much an novice, I can definitely confirm osterizer's point about getting some space to fly in.

I can hover the BCCP in my basement, but since there is very little room around, there is not much room for error. You almost have to be perfect and it's intimidating to try and get it off the ground more than a foot because it's harder to bail if it gets away from you.

I took it out to my club's field, and found it was much easier, which I attribute to not having to worry about any obstacles around and being able to pick it up off the ground 4 or 5 feet. It also gave me a little more leeway to experiment with the hover, and the ability to learn the amounts of control input needed to keep it stable. A little to much? No prob, just bring it back and your brain adjusts the next time. In the basement or my garage, this would end up in a new set of rotor blades.