We had such a lovely stay on the Bay in the houseboat complete with a private chef for delicious dinner one night and a tour of an olive oil press another day! Between that we enjoyed wandering around old town Bisceglie which is all around the Bay and sitting on the deck of the houseboat watching the boats go by.
A couple things to note are that the kitchen is rather limited, so cooking for yourself might require a little creativity in terms of tools available and the WiFi is the public bay WiFi which we were never able to get a strong enough signal to use. There isn't a book of instructions, but we figured everything out with a few quickly answered messages to the hostess.
All in all, a lovely and unique vacation experience!