After I made with some models of Silverlit very very good experience and also by helicopter I had to simply define this device. The shape and the technique have their charm. The disappointment came after 4-5 charge. This jet has an extremely short flight time, despite a long charging time. Impressive is the switch from the helicopter in flight mode. However, he is not for beginners and should be flown by totally calm conditions. Trimming is very well described and can be implemented very quickly. The landing should be carried out only in the helicopter mode there tends to the model quickly to roll over. As already described, it is not so great with the flight time. My recommendation just read times under xtwins.de and then decide whether you have to really buy.