Wycombe,
I was there just a couple of weeks ago, and what the others say is absolutely correct, its a must.
Sadly the Sunderland is looking a little worse for wear, but its still all there in the hangar.
Make sure you take in the 2 tours they offer - they show you round the restoration hangar aswell as the spares hangar, where its wall to wall engines and other bits.
Fantastic place, worth every penny, and not to be missed.
Sadly, the other museum at the back of Kissimee airport is now finished. It got badly hit by a hurricane (last year I think) and everything has gone, although the owner still flies a couple of Mustangs and Spits from there.
I did a bit of flying whilst I was there also and can recommend Orlando flight Training for cheap hire.
Have fun
Kind regards
TSM