We had a lovely time in Monopoli, the apartement is really recommended. It is very clean and looks exactly like the pictures.
Antonella is the perfect host. She gave us a lot of information about everything in and around Monopoli, so we could really enjoy our stay.
I would recommend the apartement especially to people not coming with a car. It is right between the beaches and the city center. You can walk easily to both. Would come back anytime there!