Very nice hostel, close to the center, metro and train station. Good venue to explore both Lisboa and other places, such as Capo de Roca and Sintra. Rooms are big enough, two shared bathrooms are very clean, shared kitchen has everything, that can be needed for cooking.
We had two problems: very hot (we were there, when it was up to 40*C) and moskitos!!! Take something with you to help yourself.
Antonio's mother welcomed us with Iced tee and milk for the baby, which was really necessary after hot Lisbon. Antonio and his mother are really nice person. Can definitely recommend that place!