It's not what it used to be, but DH and I spent five days there after our trip this past September for our 25th anniversary. He and his family have been going to Daytona Beach since he was a young boy and his parents, up until last year, went twice a year for two weeks each time (they stopped because they are both in their late 70's early 80's and could not do the driving anymore). After the hurricane, a lot of the hotels were torn down, some are still standing but are boarded up. There are still several nice hotels and lots of condos. We spent a lot of time walking up and down the beach, going to old local favorites for dinner, shopping, etc.
If your tickets at Disney don't start until the day after you arrive, then yes, I'd take a drive to the beach. You can drive your car on the beach...depending on the time of year, etc. If you go, be sure to go to the hot dog stand on the beach...great hot dogs!