Spent $400 on the Airfield X350 Gold Quad with Flysky FS-i6 controller which won't bind with the Quad. As advertised out of the box flying never happened. No adequate documentation for support or troubleshooting. No real technical support from Xheli's email and just forget getting them on the phone. Took the product to a hobby shop and they could not get it to bind. Never in my 62 years of life have I run into a company that should be shut down by some Federal agency due to the absolute worst customer service ever. I now have a $400 ashtray.