We really enjoyed our vacation in Sergio's flat. Sergio was very friendly and helpful. The check- in and check- out was without any problems.
The flat was very spacious and nice. Also the air con was working very well.
Also the location of the flat is very good. Just 2 min walking to the next metro stop and you can catch a direct train to the airport from the Atocha station.
All in all Sergio and his flat are highly recommended. Would stay there again.