We strongly recommend Albin's place for your stay in Barcelona! Localisation is perfect (close to the placa Cataluñya, metro station, AeroBus stop). The apartment was clean and cozy. There was no problem with our arrival past midnight. Albin greeted us kindly and treated us with a bottle of water.
The only problem was a music festival close to the place. We had difficulties to fall asleep while a window was opened, but closing it solved the problem.
We will recommend the apartment to our friends :)