Have the Zoopa 350 ordered as a complete beginner. After 5 battery charges I can him for 8min (Felt 2min :-)) in the closet "Forward" in limbo hold (H2,40mxB4,00mxL7,00m). A brief attempt outside at -5 ° C took me a half of the tail rotor pinion - the plastic was at the temperature just too brittle and the climbing frame easy to stable. That these penny-parts not lie, is a shame, because it can just spoil the fun at the beginning. In my case, that was not the problem, because you can push a bit further, the pinion on the shaft. A fall from the basement ceiling to the tiles and diverse bump on the wall, leaving no significant damage, clear the rotor blades have some frayed edges of cement plaster. Beginners should avoid the living room, and in particular tiles he slips up a notch, while the rotor ausdreht. Generally, one can but slipping on tile better back and forth in order only once to get a feel. My next 5 battery charges I will now spend to invert my thumb nervous when the unit coming towards me :-). Conclusion: A clear recommendation! Who is a little bold, can do with this Singel-rotor model, my children but I'm going to buy small foam bumblebees, which they can then also in the television or yourself flying in the face (the latter should be avoided when Zoopa) ... And I do not begrudge me a thicker battery!