We spend four wonderful days in Polignano! Francesco and Jaqueline were great Hosts: very friendly and they provided us with a lot of information about the town and surrounding.
The apartment was very well designed and with lovely interior. We 've been there with two little kids and we all loved the rooftop.
The flat is very good located: only 5 minutes to walk " downtown" but very quiet as well. But for good sand-beaches (especially with small kids) you will probably need a car.
If we ever come back to Polignano we would choose this great apartment again!