With the guys I fly with, we have all sorts of motors. I'll agree with most of the guys above, tower motors are a dang good bang for the buck. A buddy has the .75 and it has been through hell and back, and never misses. There are a few others with .75s and .46s, they always fire right up and never quit. Because of the planes they are in, I can't say much about the power in terms of all out speed or 3D vertical performance.