Exploring the city is great from Alberto's place. It's in surrounded by everything we needed. We were three people on a budget and could walk to the Sagrada or Barcelonetta and could find a cheap beer nearby.
Alberto is a relaxed guy. He had another 2 guests in the loft above the kitchen area so slept in the living room. With three people, our part of the house was semi-private. Perhaps because there were 5 people there are a lot of house rules. Make sure you understand these before booking.
I'd still stay there again