+1 I've been running 6 years no problems.

Well actually the first plane I put this engine on was a GP Extra.60 size.

I had metal gear servos but the elevator was not up to the power needed at full throttle 16 x 8 speed pass. It was a well built kit, but that little engine ripped the elevator apart. I now use only pin type hinges and good servos on similar setups.