Windows couldn't be opened during the night, because of the smell and sometimes the noise coming from the outside although the vindows were facing the blank wall. Shower cabin is really small. No soundproofing at all, we could hear all the noise from other rooms and the corridor. There were no electricity sockings in the room except the one of the TV(!) plus one in the bathroom! Imagine three people trying to charge their cell phones and other gadgets?!
The location is really perfect, the old town is nearly around the corner, and the shopping area is within walking distance. It takes less than five minutes of walking to get to the nearest metro, and Plaza Mayor (airport bus) is just one station away. No breakfast, but plenty of places around to eat. The room was not too small for the three of us, we had enough space for our luggage, and the bathroom was comfortable. Rooms were clean and comfortable, wi-fi worked very well. The guy at reception spoke reasonably good english, and was very helpfull. The pension is on the 4th floor, but there is an elevator that was never busy, so no problem at all. Overall, this place is basic but decent for one or two days of low cost stay (we payed around 140 euros for 2 nights , and three persons).