I chartered in the Exumas this year (Navtours out of Nassau); I also spent 4 months in the Bahamas (2.5 of which were spent in the Exumas) as a cruiser on my own boat before that. I love the Exumas, but they are not an easy place for charterers. You have to be very resourceful, as you can go days and many many miles between places to fuel up and top up. Not much in the way of restaurants or bars, either. If you like seclusion, you'll be delighted.