Looks exactly as pictured on the site. Very clean, with a comfortable bed and private bathroom that has an excellent shower. Alfredo speaks no English and I speak no Spanish but we managed, and he was even very sweet when I woke him up because I couldn't open the door (tip - you need to pull it towards you to unlock).
Location in Chueca is excellent - easy to walk to most of the attractions and the area is full of restaurants, bars and shops. It can be found without much hassle using the usual map app. As is mentioned on the details, the room is street facing so there is noise at night. It didn't bother me though - it was people chatting, not music or traffic.
Free WiFi provided and the bathroom has shower gel, shampoo and a hairdryer. Room comes with a safe, kettle, TV and jug/glass.
Extra bonus: the art work. It's like staying in a gallery. I wanted to bring many of the pieces home with me. They would fit in well in Museo Reina Sofia.
Tldr summary: excellent location, great apartment, very good value for money. Also, felt very comfortable there as a solo female traveller.