The only problem I had at the beginning was that I had to charge the batteries once (charge, fly, low battery warning, charge again). Now he flies great. Still a high pitched rumble with the rotors on or off. Mostly only children hear it. It's coming from a drone, so it doesn't matter. The ride is a lot of fun and the camera is very, very stable! Flew it a bit today, just wish they had faster battery charging. 4.5 hours to charge a battery that has less capacity than my old RC planes which took less than an hour to charge. Extra batteries are pretty expensive so wait until you get more. You will not regret buying this drone as it is very good and still working on some of its features. It's quite fun to see him following me around and when the wind guest shows up he goes a bit crazy as he seems to fix it but it's easy to fix. Another thing I would like to change is that the remote is in metric where I like having feet instead of meters which I have already changed in the app. I was hoping he would connect to the remote and change the remote so they are the same.