I bought this for myself and really enjoyed the way it flew it is stable and good for beginners like myself, however as with all these toys they do eventually crash usually pilot error or a mystical gust of wind from a door, and unfortunately it went careening into my light damaging the fulcrum that cause the top blades to pivot helping to create lift, I noticed this is only made of plastic and therefore quite a weak spot it could no longer get enough lift to get off the ground
The second one I bought as i thought new skills and more gentle flying would avoid such catastrophes. My plan was foiled by the fact that this one was much more tricky to control the trim being far more sensitive to the power you put in to maintain lift, It therefore of course bumped relatively gently, this disengaged the sprockets from the servos meaning neither set of rotors would turn at all.
I conclusion a really fun toy but if you want to enjoy it for long be careful and hope for a stable one that flys well I now have a smaller model which has not failed me yet the Mini gyro zoomer very stable and easier to fly