Ulf - my Mini has a OS 15 cv... HS 85 servo's, Micro RX, 6 volt 720 mAh NiMh battery.
I like it a lot... the 15 is just enough... Might not be enough if you really want to hammer it around... but I like it this way... Just enough power to have fun!! Will hover and TR.. you just don't have a lot to bail out with... That motor is getting stronger everytime I fly it... I'm runing 20% nitro in it now... and it's even better...
This plane is capable of a lot... it does great harriers, hardly any wing rock. Rolling harriers are awesome with full rate ailerons... Elevators are cool... loops on it's ass... both ways.... Knife edge is really solid.. no coupling....
Over all, it's a cool plane.... Not real durable.. but very flyable...