I moved to FL just over 5 years ago from South Jersey, first to South Florida for 2 years, then to Brevard County.
The first thing I noticed was the reckless/aggressive drivers, more so in South Florida than in Central Florida. I then learned that Miami was voted for the second year in a row the worst city for drivers. Tailgating is rampant, and many will tailgate you instead of simply passing you.
Gun shows. Well, FL seems to have them with the same frequency as car shows, if not more often. Having grown up in South Jersey, guns were mentioned maybe a few times at the dinner table, and my parents didn't have any.
Confederate flags. Yeah, I know it was part of our heritage, but aside from the hateful aspect of it, we no longer live in a confederacy. Should I fly an American flag with only 48 stars because that was part of US history?
Linguistic unfairness. ABC and other English-language TV stations will either dub or subtitle at least some of their programming in Spanish, "disponible en espanol." Do Univision and Telemundo dub or subtitle any of their programs into English? Not the last time I checked, and Florida has a huge English-speaking population. I'd love to be able to watch Sabato Gigante, but I don't want to have to learn Spanish in order to do so.
Price of food. It seems to me that food in Florida supermarkets is more expensive than in NJ. $8.59/lb for lunch meat is what comes to mind immediately. Also, they don't double coupons down here like they do in New Jersey.
Although FL beat out NJ with regard to smoke-free restaurants, it has yet to make bars smoke free, too, as NJ has done. (FL states that if a bar gets more than 10% of its revenue from food sales, it has to be smoke free.)
One nice thing about FL is that in 2005 they changed the law about reselling event tickets. There is no such things as "scalping" anymore here, and you can flip that Celine Dion ticket and get what the market will bear, just like many FL homeowners did in 2004/2005 when the housing market was red hot and people were flipping homes like crazy.
Finally, hurricanes. Yes, it's scary not knowing if your home (or car) will be damaged. Sadly, despite receiving warnings, many Floridians in my experience simply do not prepare. Many go out in their cars afterwards looking for gas and food when they should have done so before the hurricane hit. Also, you may experience a power outage for days if not weeks. Can you deal with eating food all of the time that doesn't need to be cooked-canned tuna, crackers, etc? Do you like taking cold showers again and again? Florida hasn't made much of an effort to bury power lines, citing costs, but how much is lost in productivity because you have no electricity? You could get a generator, but they can be dangerous, and they have to be serviced regularly just like your car's engine.
Hope all of this helps with your decision to move here.