Luiz is extremely helpful and responsive guy. He gave us very detailed instructions on how to move through the city from the airport to his appartment and to Bari centrale. He answers withing 1 hour and explains everything you ask him.
The best thing about his appartment is its situation. I think half of the buses from Bari centrale go near his flat so moving around is very easy and fast. The place has big and beautiful terrace, shared kitchen, separate bedrooms and shared bathroom. The only disadvantage, in my opinion, was the bathroom. It seem to me a little dirty and made the bathing a bit unpleasent.
All in all, for the price is perfect. if you are staying in Bari for sightseeing and going to the beach and just need a place to sleep, Luiz's place is a good and recommendable option.