Although NEC compliant, and INHO poor design practice one 20 amp circuit for ALL baths is a PITA. Not the GFI tripping, but the 20 amp CB tripping from more than one blow dryer on.
It's a pain in the butt as AHJ, GFI in first floor powder room & 3 or 4 baths upstairs.
But, alas, it's compliant!!
John
