I keep my New Zealand built Airtourer 115 on an 800 metre grass strip and I'm in a hangar next to an AA-1 whose owner is very happy with it. Performance seems to be the same as the Airtourer with perhaps a slightly longer take off run for the AA-1. Cruise seems to be about 5 kts faster for the AA-1 but otherwise it's "even stevens". However if you're in NZ I'd go for an Airtourer as AESL/PAC are based there if you need the bits.