Perfect location for Madrid! Amazing views and super central. Really hard to beat. Nice big rooms and for the most part didn't think the walls were thin. No issues with the hot water at all, but wifi took some fiddling and so did the lift/elevator (but no biggie). There was cold water waiting for us which was such a nice treat.
THE VIEW!
Wow, incredible. Spent most of the trip actually out on the little balcony just soaking the city in. Worth it for that alone, but there's so much more.
Could not recommend it enough, do not hesitate.