Everything was perfect! The Apartment is better in real life! Very clean and cozy. The location was great! It felt like a second home and I had the chance to feel like a local Madridian. Carlos and Harrald provided me with all the information I needed and even came up with a full day of site-seeing plan for me personally. It was wonderful :)
There is only one down-side; the apartment is above a busy area and it might get noisy at night (especially Friday night)