No issues with the check-in or with the keys.
The room was a bit smaller than expected, and also cold in the night.
I didn't feel well when I arrived so asked for a coffee. Didn't get one. Also I couldn't iron my shirts, because I didn't get any iron. I think these 2 things shouldn't be a problem even if a guest is renting just a room.
We didn't really talk to each other, because I do not speak Spanish and she speaks only that language.
The flat is good located, near to the city center. Optimal location for a city break.