I would be even described as fairly untalented beginner & came but surprisingly after the second flight with the U816A perfectly clear. Hovers are with a little practice, not an issue that can be controlled UFO astonishingly accurate for this price segment. Smaller crashes put the Quadrocopter so far without problems away, even the outer frame Styro survived so far all crashes without breaking.
There are two flight modes are available:
Mode 1 is intended for beginners and for flights in smaller spaces. (Control is very "cozy" and forgive small mistakes)
Mode 2 is for advanced & Flights in halls or outdoor. Here the Quadro speaks to much more direct, allowing a very aggressive style of flying to. (A lot of fun, but please only outdoors or in large halls !!!)
I was really surprised at how direct and simple the part can fly - you have almost no trim and also (if appropriate talent) even in light winds is the Quadrocopter still good control. (No comparison with a 3-channel heli)
If times but should something go wrong, keyword spare parts supply: Perfect! From blades sets out the battery to more than complete motor units or the radio unit: you can buy more everything, but if times something happens!
The only drawback: The plug of the radio unit to battery is fiddly to unlock a little and thanks to my talent I then sometime the plus cable demolished - 5 Minutes soldering and the eerie UFO hovered again with its characteristic hum (sounds like a giant Schnake ;-)) by the Bude.
That is why "only" 4 stars! :-)