I have been debating getting Rothys for months--I have fairly severe bunions, and I've never found a ballet flat that can accomodate my wide forefoot and narrow/normal heel. Most ballet flats are so painful that I cannot walk more than a couple of steps in them. I've never owned a pair in my life.
Lo and behold, I was gifted a pair of Rothys last weekend ("the flat" style; white, grey and black camo pattern) and...they seem great! I want to add my two cents to this thread as there aren't many non-sponsored reviews out there...
The size 8 fit my 7.5/8 feet very well with *no pain* in the toe area. The back of one rubbed a bit, but after 3 days of full time wear (for reasons I won't go into), it no longer rubs. This pattern is no longer available, but it goes with my usual bottoms (black ponte, white jeans, dark jeans). The shoes are adorable and disguise my distressingly unattractive bunions.
The Rothys don't feel that supportive (I think an insole would help), but somehow my feet (and back) just don't hurt, and I've walked all over the place (no hills). So, a tentative thumbs up (way up) from me. I"ll update if I have issues.