Definitely recommend this apartment!
The location is perfect: practically in the center, there’re lots of shops, 15 min by feet to the sea, 15 min by feet to the central station. Apartment is clean and nice. And the apartment owner is a dream for any tourist: ready to help anytime, speaks English and Italian, also made a very delicious dinner for me in his restaurant.
Probably, this is the best place in Bari I could choose.