There isn't a lot of width either, if my memory is correct. Worth sitting in one to see! I remember banging elbows with my instructor.
I did my initial training in one. The throttle on the left and the electric flaps on the centre panel made juggling the Y shaped stick interesting but I enjoyed flying it. Semi-aerobatic too - although not with a passenger.
I don't remember it being under powered - but then thats all I knew at the time (and had a very long runway to play on).
Need to be careful to avoid tail strikes and the wheels are quite small (plus mine had spats). Might want to remove the spats if going to be operating constantly on grass...
Its also an EASA aircraft (if I remember rightly) and ours had a CofA rather than a permit. Don't know if that matters to you.