I wish them the best. I've never been to FL, but my cousin who was born and raised in the Pacific Northwest ended up there and he HATES it! The only thing he likes about it is the critters that end up in his yard. Hopefully your family will adjust easier and come to love it as home.
Oh, I think I sound awful. I guess what I was trying to say was the my cousin, who grew up in basically a moderate, four season climate hasn't acclimated well to a hot, humid one and a half season climate. My cousin from Texas that moved there has been there a LONG time, and she seems to like it fine, but she came from hot!