I don't own an MT (and probably will never) but have maintained quite a few, most I have worked on have been a pain. Larger stone chips (the kind you get from gravel strips) will require replacement of the leading edge (send away).
They are actually a wooden propeller with a Carbon fiber covering nor a true carbon fiber prop and if treated poorly (chips not repaired) can suffer from the inner wood getting damp and rotting.
Factory support used to be pretty poor but better now that there are authorized repair centers in Aus.
In addition to these issues I have always wondered if there will be flow on effects in the engine counterweights from the lack of blade inertia and subsequent high deceleration rate on shut down.
I would probably only consider them for AUS if it was a high wing aircraft operated mostly from sealed strips and there was a major advantage in cost or performance.