I set mine up the same as Alejandro.

First I set the throttle with a tacho. ie 1/4 of max. rpm = 1/4 stick position, 1/2 of max rpm = 1/2 stick position etc. I then adjust the curve to suit how I want the plane to fly. As Alejandro said, this engine has a huge amount of power/torque in the low to mid range, so needs the curve set to reduce how much the throttle barrel moves in relation to stick travel. Set it so that in level flight at your normal flying speed, the throttle stick is at half travel. In verticals I use up to around 3/4 throttle depending on conditions.

Prop selection will also play a big part in how well the engine delivers its power and how the plane flies. I'm currently using the APC 21 X 10 Carbon Fibre and it works extremely well.