It is powerful to see a bit too much for flights indoors in small spaces. I had the chance to test it in a conference room. Passing in "high" mode, it becomes nervous and gets very fun to drive.
His biggest asset: its lightness that makes it very resistant crash or impact. I could see it withstand a fall of over 6 meters high and recover without problems.
The independent battery system allows for two successive uses (comes with 2 batteries) and more if you buy in others.
Finally, the fourth channel that allows management to laterally move the helicopter is a real plus.
Simply the best helicopter in its class!