I stayed at Francesco's apartment for 5 nights and it was a perfect place for me. Very easy walking around Ostuni and, in particular, to the center of town. Also, I figured out the local bus schedule and was able to get to the train station which is a fair distance (10 - 15 min. drive) from the center of town. That enabled me to take a day trip to Lecce which was quite nice, and I would have made more such trips had I had the time.
Francesco was very helpful with restaurant suggestions and also made dinner reservations for us several times. Also, we had coffee, breakfast and a late night snack at "The Pink Cat", a nearby restaurant/bar that is open 24/7 and in the neighborhood. The food in Ostuni, in general, was excellent! You just need to get into the swing of late night dining when everyone is out on the streets, including families.
Although it lacks any outdoor space in which to relax, the apartment itself is quite comfortable and well provisioned. The coffee machine is great to have in the morning!
I would stay here again.