Alvaro's place was very nice and centrally located. He met us when we landed and helped us get settled with parking reservations, local restaurants and directions to shopping. Alvaro was also extremely responsive to all our questions about anything and everything Madrid! Awesome host.
Our only challenge was the fact that each night there were people gathered outside the bedroom windows talking loud and smoking well into the late hours of the night. This made getting to sleep a bit of a challenge.