The walls are really thin. The neighbor above the bedroom watched TV loudly until 3am and was sick, so they were regularly coughing really hard which isn’t their fault, but it sounded like they were in our apartment that’s how thin the walls are, so I recommend ear plugs for sleeping. The beds are really hard, the pillow cases were old with oily looking stains on them and towels are rough.
The TV only had a few channels.
There is no light at all in the courtyard, so you will want to have a pocket flashlight when coming back at night especially since the door lock is difficult to open.
You will be asked to take the garbage down the street when you leave. I have never been asked to take out the garbage.
It is a great location and the Tapas Bar across the street is a great place to stop for a night cap.
Seville is a charming city to visit.