What a lovely and cosy place. Felt like home and slept like a baby. Even though I couldn't meet Alvaro, he was very kind brining me some bakery that was a savior in a late cold night. If you book his place, it's like booking a hotel room with everything ready for you.
Location was just excellent, you can't find a place close to Madrid center like Alvaro's. Near to all local coffee shops and pubs.
Thanks a lot Alvaro for your prompt response and hospitality.