Here's the biggest issue with I4....add tourists to the already bad volume. When you put people trying to get to and from their jobs, quickly, in with tourists who have no clue where they're going...well, recipe for disaster!!! Add in all that construction...whoa. My dd, almost 26, never drove on a two lane highway if she could help it up here in central Mass!!! She moved to Orlando and all bets were off....now, she's back home, driving the Pike, saying 'heck, I drove I4 all the time, this is a piece of cake!'.
I do try to avoid it when I'm in Florida, if I can. It's just a nutty roadway.