I am about to come off the buddy box on my Eagle 2. It is powered with an OS 40 and can do basic aerobatics: rolls, loops, spins. It is a little underpowered for some of the other things, but it is a trainer, what do you expect? My advice would be to learn on the eagle then get a tiger 60 or something like that to learn the advanced flying aerobatics on. Then if you like move into what you really want to do.