Great location near Retiro, but far from most sights. Bed was really comfortable, AC was also good. Check-in was a bit challenging since the instructions for meeting up with the building manager was a bit unclear, but that didn't take too long to sort out. Wifi was good, and the unit didn't have major noise issues. One big issue though was the clogged bathroom drain. At first it seemed to just have slow drainage, but then black water started gurgling up and out of it. It wasn't too terrible, but there was a perpetual damp odor in the bathroom because of it. Repeated attempts to get the plumber to come and fix it also failed, since I didn't have time during the day to stay around and wait for a plumber. The host was very responsive, but it seemed like she wasn't in the area, so couldn't help with resolving this issue in person. Hopefully this plumbing issue is fixed by the time the next guest is hosted. Host seems to feel terrible for having this issue come up, so I can't really hold it against her. The unit is tidy otherwise and is a decent stay for a week if visiting Madrid.