Great location to explore Madrid without being right in the middle of the busy centre. You can walk to pretty much all of the big sights or the metro is very efficient and nearby too. Recommend a trip to Toledo whilst here.
Enrique was a super host, arrived on time to let us into the apartment and gave us good tips on where to go for food etc. View from the apartment is incredible- straight onto cathedral San Francisco (beautiful inside). Apartment itself was perfect for our stay, all necessary amenities, right by a supermarket and close to tapas bars. Great coffee machine! Only slight negative comment is that the mattresses are very firm but that's personal preference.
Definitely would stay again on another visit to Madrid!