We had a really great time in Bari and Puglia, and the apartment was huge part of this succes.
The place was big with two completely separate rooms with comfortable beds, well equipped kitchen and separate dining room with table and TV (but we had no time to watch anything :) ). Apartment was very clean and comfortable.
You have 15 minutes walk for a Old Town Bari Vecchia so we were there almost every evening for another slice of pizza, and you have around 35 minutes to Pane e Pomodoro beach, which maybe is not the most beautiful beach in Puglia but still is very nice, and comfortable to kids. We had rented a car but if you want to travel Puglia by trains or buses, you have train station 10 minutes from apartment. So location is really really good.
Giancluca and his team helped us a lot with taxi order, suggestions to eating places and especially car rental which we finally used and rented a car with much better price.
Also, we asked Gianluca about baby cod, beach umbrella and baby bathtube and he provided all of those things so we can enjoy our stay.
I really recommend you to stay in Gianluca's apartment!