David is very attentive and was incredibly flexible with my check-in, even late at night. The location is a great split between a station for airport transfers and getting to Gran Via/Plaza Mayor, etc. I am a very independent and private traveller, so would have preferred a lock on the door rather than David checking on the space when I wasn't there, but overall felt very safe and comfortable as a single traveller for sleeping, etc. Lots of great neighborhood recommendations as well!