J.F.
Destin is a beautiful area. I was there with my family several months ago and the beaches were great. We have stayed at the Sandestin Resort a few times - they have lots of properties in different price ranges. We also went two years ago and had to check out early due to a family emergency back home and the girl at the front desk even refunded our money for the nights that we couldn't stay. We weren't expecting that but it was really nice that they did that for us.
If you are close to Sandestin you definitely need to eat at Acme Oyster House! It's on the resort property but anyone can go there (lots of nice little shops right there too). Their grouper is awesome and so is their gumbo!