Overhangs were the biggest issue I found. So much so that I moved back to a 0.4 after a month of faff trying to find settings that would compensate.

I use my printer mainly for minis, and figures that would print supportless on the 0.4 nozzle needed huge amounts of supports at 0.2 in order to print without missing chins etc.

That said, the level of detail that I could achieve was better, particularly on the hair, but not enough to compensate for all of the extra faff and wasted plastic.