The house is tiny but with all comforts. It's situated in a super lively area of Madrid, full of restaurants and cafés and at walking distance from all major attractions.
We had a great time there and Hector was really friendly and even helped us with a flexible check-out.
As other people already said, the ceiling is quite low in the bathroom, but with a little bit or attention it's quite easy to avoid to bump your head. The bed was quite comfortable but a little inclined on one side. Overall a great experience.