These things are bullet proof. My wife liked mine so much that she ended up getting her own. They have been bounced off of the walls, ceilings, and refrigerator more times than I can keep count - and they still fly as good as the first flight out of the box.
The only thing I did to them was turn the "elevator" pushrod in a few times to get more forward speed.
Check out FG's sister site - Crackroll.com, for pics and video here:
http://www.crackroll.com/forums/showthread.php?t=776