Cost of living is similar to midwest. I came from Ohio 13 years ago and cost of living went down a little since no state income tax and no winters. No rust on cars and cars last much longer in florida. No winter clothes to deal with. Utilities are much lower in summer peak heat then winter peak cold up north.
Wear on home is much less. Winters wear everything faster. Gas goes further since no winter driving. Gas is 2.70 right now.
No natural gas bill to deal with. Only thing i miss from up north is a basement. Very few homes with basements in Fl.
South fl and coastal area cost of living is higher but orlando is lower then when i was in ohio.
Grocery, entertainment, dining, essentials are all similar to midwest.
Home and flood ins is a bit more but only 15-25% more depending on where you live like on a lake. Car ins is same.