One of the more important AD's to consider concerns the fatigue life of the main spar/components, listed
here, number 41/amd 1. The spar is lifed at 17200 hours. I heard there is a mod that provides some exoneration - the RNZAF ones had it - but you'd have to speak to someone in the know.
Long ago, did a few hours in these, including some aeros, and a cross country from Invercargill to Ardmore and return. (Pretty much most of the length of NZ.)
One of the more fun handling and robust aircraft around, but can definitely be a bit underpowered. Not great for strips or rough fields. Excellent in wind and loved crosswind. 25kt demonstrated, IIRC.