We really enjoyed our stay with Sylwia and her boyfriend - they are a lovely couple. The apartment was very clean and had the best stocked kitchen we'd used this summer. Sylwia gave numerous recommendations and was very accommodating. The apartment is outside of the main areas of Barcelona so you need a short train ride into the city but it's a nice break from the hustle and bustle of the city centre and is very close to metro and bus stations. Only criticism is that the room is facing a busy/noisy square so it was a bit hard to sleep on some nights.