Oliver's place was delightful! The apartment was nicely decorated, clean, and had a good selection of books and sun hats to take up to the beautiful roof deck. Comfortable bed, good bathroom and kitchen facilities, TV and WiFi. We had no trouble getting in, and Oliver was a great host.
We also really enjoyed the neighborhood! I like to get away from the tourist trail and experience a "locals" area. Sarria seemed very safe and family friendly, and there were lots of nice cafés, bars, and restaurants nearby. (We particularly enjoyed El Canalla, with next door Santamasa a close second.)
I'm in love with Barcelona, and would definitely stay here again.