First of all the house was perfect, exactly as you see it in the pictures. It was very clean, very comfortable and right next to the metro station in a very beautiful and safe location. As for Zhao, he is the best host that you can have. He waited for us very early in the morning and let us have an early check in. He explained everything about the house and even provided us with useful supplies like water and milk because he knew shops were closed on Sunday that we arrived. Finally he was very helpful and eligible with the checkout and arranged a late checkout. He even gave us a spare key( we were 2 couples). We definitely recommend Zhaos house without a doubt to anyone visiting Barcelona, especially if you're 3-4 persons or more.