Sergio is a great guy! It was a real pleasure to live in his place. He is a very nice and helpful person.
Place itself is very nice and cozy inside, though it is small. There were three of us and it was 100% comfortable for us to stay. All the furniture, beds, towels were clean and fresh.
Flat located in the very center of the historical city so there were no problem getting to the interesting places and walking all around. Metro station is also very close so it seems to be a very good place to stay for a small group of travellers.