The only thing I didn't like was the clutch helper spring.
More info. here:
Clutch pedal too soft/no feel? Remove the helper spring!
Other than that it's just getting used to driving it. It likes to be herky-jerky if not shifted just right when shifting under 4K RPM.
When I am in first and coasting, then clutch in (when I'm leaving my work garage, I have to stop and swipe a badge) there's a loud clunk from the gearbox, but I've not found a way to not have it make that sound.
That's all I can think of for now.