Besides the location, which is quiet good, near Gran Vía, and the shared bathroom that was clean and spacious, the rest was a pretty bad experience. First of all, at our arrival there was nobody waiting, although we informed previoulsy that we were coming from Chile (long way) at 15:30. Then they said that "the rule" was the host are out for luch between 3 and 4, but at 4:20 the host had not arrived yet. As a favour his partner opened the door for us. Then there were no towels available and no toilet paper. This problem lasted a day. We never met the host, but his partner was very unpolite and unfriendly. Not nice, definatelly, and very far from the experience that AirBnB is advertising.
Though the room was clean, there was lack of maintenance, to say the least: a hole in the roof, hole in the door as somebody kicked it hard, no exterior window curtain, etc. All this obviously not shown in the pictures.
Bottom line, don't go there, these guys are not there to help, they just hate visitors.