Armonio is a lovely host, very easy to contact and helpful, too. I arrived at lunchtime and he let me drop my bags off and check in early, which was a real help. The apartment is in a great location, in an area that has a lot of of nice bars and restaurants, but is not too touristic, you can find real Spanish life nearby and the local market has good provisions (jamon, olives etc). There a several metro stations nearby and it is walking distance to central areas like Conde Duque, Chueca and Malasaña. The only small downside is that the local bars can be quite noisy at night, light sleepers should bring ear plugs. There are two cats in the apartment - sweet and gentle - which is a plus if you like cats.