Every change made in Tokyo Mirage Sessions is better besides the wedding dress, which just makes it look unflattering.
I don't have a problem with the TMS costume changes in a vacuum - like, the goofy "street" outfits generally look better than the bikinis - but I really disliked the rewrites for the mission they were a part of. It was SUPER obvious that the content had been edited and the story was massaged around it.
And yeah the wedding dress was ugly as sin.
I don't mind content changes as long as the effect on the overall package is minor. And that the new stuff is at least as high quality as the original. TMS didn't quite succeed with the latter, but since it was a relatively small part of the game, I can't really complain.