We stayed for 4 nights in Roberta's apartment, 6 people, so we rented the whole apartment (up to 7 people can stay there). My brother was in wheelchair but the apartment is very wheelchair-friendly, large bathrooms, elevator in the building etc. The rooms look amazing, simple decorated but with good taste. The owners are very friendly and willing to help, they also live in the same building. When we got there we found focaccia, wine, fruits, coffee and snacks waiting for us in the kitchen.
Kitchen is fully equiped btw so you can have a breakfast or something at home (eating 3 meals a day in the city can damage your wallet) :)
The cafeteria downstairs has very good coffee so if you run out of coffee in the apartment you can just call them and they'll bring you a cup of coffee upstairs.
It wasn't my first time in Bari and comared to the apartment I rented last year (same price) this one is 3 times better and closer to the beautiful old town (5min walk).
Overall the apartment is:
-Beautifull
-Big, (up to 7 people) 3 bedrooms, 2 bathrooms, 1 kitchen, 2 balcony (with orange and lemon trees)
-well equipped, you have everything you need, even an "info point" with all the attractions and good restaurants
-quiet
-well-positioned, in the center of the city, close to the train station, old town
-has very nice staff
I strongly recomend!