Those AirHogs Havoc helis are a blast to fly. They fly pretty well in living rooms. And just about all of the micro helis I've flown all fly about the same, and use the same rotor head, and tail rotor.

They can be learned in about 2-3 flights, and you can fly them all day. Be warned though, you might have too much fun flying through obstacles, and you might run the radio batteries down

Also, after a while, the tailrotor begins to die, as in it doesn't perform like it should, and takes about the whole flight to adjust it so that the heli flies straight.

These are good little TOYs to fly around, but once you get bored of them you might want to stop by a local hobby shop (google can be your fiend there), and check out the trainer aircraft they have. Those will be more exciting than a havoc heli OH, and follow their advice too. Ask any questions you may have here.