Sergio was absolutely fantastic! And his apartment was just a 8 minute walk to the Prado, and is surrounded by restaurants.
Sergio is one of our favorite Hosts so far!! He was quick to reply to any messages and even messaged the next morning to follow up and make sure we were settled in. He was very amenable to everything, and his apartment had maps of Madrid, guide books and other tourist references! He left us a bottle of wine that was quite good, I must say, I miss Spanish wines already.
He has two apartments right next to each other that share a hallway, and he said if we had a late flight we could leave our suitcases in the hallway outside of the rooms, which was very nice of him to offer. He even let us check out later than what was posted online.
If you're in Madrid, stay here!!