I owned a Mosquito 3 some time ago, and I was quite impressed with it... and because it is quite a good, manageable flyer, I thought I would not be easily surprised by anything else. Well, surprise! I was really thrilled when I first flew the S107... the gyros, I believe, make all the difference, giving you even better control than before. It really is possible to do some precision flying with this, landing on tight spots on a tabletop, etc... it seems to be quite sturdy too; my daugter and my nephew have already crashed it many times today, and still everything is OK. The only downside: the battery life seems to be a tad shorter than the Mosquito (Well, the S107 seems heavier too, so that was to be expected to some extend), but on the other side, being able to recharge via USB port will definitely prolong batteries life in the controller! Well, in short, the point is: despite having owned another great flyer in the past, I was really, really impressed with this one...