Just wanna say hi and share my experience here.
I bought my R22 few days ago and tried to played it last nite.
It is so funny!!! I took it to an outdoor basketball court.
It fly abt 3 floors high and move forward and backward. so funny!!
though the body and the tail move a bit when it is in the sky (dont know coz the air current or what), it is quite stable and most important it is very user friendly! I never played any Heli and Slim before, but I think it is not too hard to control the R22(of course the simple motion only) and luckily there is not any accident.