Luiz is a wonderful host! He truly wishes you to have a great stay in Bari. The bedroom is spacious and washroom is very clean (especially considering how many people use it - there is another Airbnb bedroom in the apartment).
One downside is the main train station is not as close as I thought it was (2.5km away). The local train that is <1km away is useful if you know the schedule ahead of time and if it runs when you need it to (stops can be infrequent). Ask Luiz about it and he is very helpful in helping you with this :)
Overall, highly recommend!