If you want to do as Baresi's do, book this sweet apartment and you want regret it.
We had a wonderful stay at Federica's apartment, which was clean, comfortable, spacious and in the heart of Bari's old town. You are literaly just a few steps away from Piazza Mercantile, a beautiful square with a lot of small caffe's, restaurants (and my personal favorite Vogliadiscobar - do yourself a favor and don't miss their aperitivo), as well as all other parts of the old city. The apartment is on the ground floor, meaning that you enter from the street, but even though it can sound a bit 'scary' we never felt unsafe during our stay. One also great thing we found out while staying here is that there is a 24h automatic machine with snacks, coffee and beverages just around the corner of the apartment so you also, kind of, have a little 'store' close to you.
Federica is a great host who gave us different maps of Bari and some guides and our communication prior and during our stay was excellent.
Tip: you are also so close to Maria's sgagliozze (google her) and excellent pizza that we had two times during our stay at the Pizzeria Arco Della Neve.
All in all, visit Bari and stay ad Federica's place, you'll most definitely have an amasing time :)