Mario's place is clean and in an excellent location close to the Guggenheim. He met us at the door to give us keys and show us around. I had missed a flight and was later than I had anticipated and he was very understanding and when I failed to update him on my arrival time he was only 10 minutes away and came promptly. I was stressed at the time but he was so nice and I really appreciated his calm and caring attitude. Excellent host! He doesn't speak English though so FYI. Gracias Mario!