Have about 150 hours on the Grumman Cheetah AA5A, admittedly some years ago, in a 10-person joint ownership club.
A fun aircraft to fly. Roomy cabin, and you can open the canopy in flight.
Power and rate of climb, however, is not its strong point.
We found maintenance quite reasonable. Easy access to most stuff, including the alternator which went t**s-up on me during a night BFR. That was fun.
Ours got pretty rough treatment from a couple of our Neanderthal members, but it was a sturdy little beast. Not a lot of them around any more, but it was a nice design.