Ying was very welcoming and helpful with information on local events and how to get around. She made herself available for questions and requests. The place is clean and quiet and I felt comfortable staying there. The mattress is extra firm, and the shower is a bit small, but both worked fine for me. I slept well and the bathroom was always clean and available -- I think there is only one other guest room. The place is 15 minutes walk to Plaza España metro and 10 minutes walk to Sants railway station, and yet it's a quiet street.