We’ve been a few times, first time we went my daughter was 3. She absolutely loves the place.
You can hire buggies or wheelchairs inside the park if you can’t be bothered taking one – I know this could be morally questionable, but children get a lot more attention from the characters if they are in a wheelchair!
The parade is really good, there are also mini-parades dotted about throughout the day so keep a lookout for those. My daughters favourite is the finding Nemo ride, it starts out innocent enough then all hell breaks loose, I had to carry the wife off it the first time! Definitely book a meal with the characters the kids love it.
The hotels are OK, they are fairly basic chain type hotels but I think it’s a pretty big treat for the kids to walk into the lobby and happen to see Mickey or one of the other characters just milling about. The first time we went we had a few complaints about the room – it hadn’t been cleaned properly and there was a full ash tray on the table (it was a non-smoking room) I complained and we got free drinks, a free meal and gift from the store, so look for something to complain about!
Everything is expensive there; everyone knows that before they go so I don’t see the point of moaning about it.