It was a lovely stay at Zhao's apartment. The apartment is newly renovated and has all anyone needs to feel at home away from home. Zhao was really helpful to arrange us a taxi to the airport. For him it was not a problem our late check-in and check out, late is really late like midnight and 4 am. The apartment is also well located, there are two metro lines joining at station just across the road. I would definitely recommend Zhao's apartment and stay there during my future trips to Barcelona.