Just out of interest, what makes them such a challenge?
Pilot needs to have the agility and dexterity of a chimpanzee to operate the flaps, power, trim and attitude prior to landing. The flap handle is above the pilots left hand shoulder. The J1B had a stall of 28KTS and you need to get the numbers right to prevent a bounce, which is very difficult to repair and a go around is usually the best option. A long wing makes them prone to lifting the windward wing at low speed and your best option is to believe they have no crosswind allowance. In this case you are probably better landing across the airstrip. (they land in a cricket pitch). You are flying old technology which is noisy and requires care with engine management because parts are not always around when you need them. In closing, I believe if you can master an Auster you can fly anything. Oh, and the term brakes has no reason to be put in any sentence containing the word Auster. The 85KTS cruise may deter some. People have been reported getting nose bleeds.
I hope this helps.