Never been, but heard only positive things. Would love to go. A few rules I’ve heard involving the costumes tho:
- Nothing covering the face is allowed, to minimize confusion between guests and characters
- Multi-layered costumes are subject to further inspection, so be aware
- I don’t think that cosplaying as any characters already in the parks is allowed, except for if there is some kind of distinction. (EX: human version of animal character, princess in modern day attire, etc.) You’ll have to check on that one though, as I’ve heard from some people it is allowed. Not sure if they’re telling the truth tho
- Elaborate costumes are allowed
- Nothing resembling a weapon is allowed, with a few exceptions. (read Disney site) This is to prevent people from smuggling guns, swords or other dangerous objects.