I crashed mine on maiden, however I was using a 5x3.5x3 blade prop. Not sure that is enough for it. I am going out tomorrow to fly a bit as long as the weather cooperates, so I will see what I can do with it then.
I built one, ran it on a Cobra 2206 2100kv motor on a 4s and 3-blade 5" prop. Yes it went fast. Yes i had about 80% aileron in to counter the torque. Yes, it crashed, but only because it went into a flatspin.