my son flew the drone about 4 times. During the last flight, one of the drone's engines stopped working. A bit sad for a product that is well made but has poor hardware attached to the structure. However, I ordered a new motor through the website. I replaced the defective motor. The only problem I have is that the drone doesn't fly up. The engines work well (crank), there is no lift. The damn thing just makes noise and just sits and looks good. Not satisfied, it is better to spend the coin on something more generous.