Staff were remarkably helpful and friendly, notably Felipe on reception.
Building was kept well maintained and scrupulously clean.
Access to building, room and spacious personal locker via electronic key-card gave a real sense of security and a measure of privacy.
The location was excellent, quiet but within metres of a main artery with the metro close by.
What could help improve? I was in a shared room (2.02) on the second floor, and needed to use the toilet during the night. The room door was a tight fit, and needed a forceful slam in order to close it properly, probably disturbing the sleep of fellow-occupants. A carpenter could fix this in a few minutes.
I had a very pleasant stay (three nights) and would very happily return.