The air conditioner was leaking and the bucket needs to be emptied multiple times a day.
On the 4th floor (aka 5th floor by American standards of an old building) with NO ELEVATOR. Be sure you are able to carry your luggage up and down the stairs.

Good location convenient to Chueca.
Bed is fairly comfortable. Could do with more sheets and towels if you stay more than a couple days.
Very basic, standard amenities. Not posh or luxurious at all.