I own this Hélico last week, ordered in China. The product is well finished even if plastic remote control are fake. In any case, everything works fine. Very good price, knowing that this is a 4Ch, bought 42, 70 it is often sold in France. I have never had a helicopter. So I'm a complete novice. In two batteries, I set the trim for a stable hovering helicopter while takeoff can not lempêcher leaving from slightly right or left. Third and fourth batteries, I did flew into my classroom, I began to train myself to tame the commands that are not so simple at first. At the same time there is a "toy" for adults. But now I delight to fly do so and avoid spitting me. He fell several times 2 meters high without flinching. But be careful anyway. Attention because outside, a simple breeze made from your chopper. In the end I am very satisfied, it must be a real learning time and be calm, but it's a real pleasure to learn to fly it.