Insanely great location! We bought a train pass at the airport when we got there but we never even used it, everything was with a 10-15 minute walk. Unfortunately there was some construction happening within the building but that wasn't anyone's fault and didn't cause too much of a disruption. The place was very modern and clean. Luis was very patient with us- we checked in very late because we got lost and stranded on the complete other side of Madrid by a dislexic taxi driver, but he stayed until we found it. We were very comfortable during our stay and the washing machine was very helpful, I wish we could've stayed longer!