I learned on a Tower Trainer 40. Ditto the good comments above.

I would make two mods if I were to do it again. First is to put some foam around the fuel tank - my fuel tank was hard mounted in the fuse. Second is to replace the stock nosewheel gear with something sturdier. Mine was too flexible and too loose in the plastic bushings, which made directional control on takeoff difficult.

Maybe Tower (Great Planes?) has already fixed these on the Mark 2.