I stayed here for 3 nights. Everything was great: Awesome location, fast wifi, clean flat, nice kitchen with oven/stove/facilities, comfortable bed, nice sunsets/sunrises. I never met Andrew but I met his cool friend Gustavo at check-in. Communication with Andrew was always easy, he was very responsive. 7 floors walk could be a problem for some people though. The radius of the stairs is not too much, so it takes shorter to walk it all up :D I also loved the plants and the book-shelf, I wish i had more time to spend inside too. Shortly, if I go to Madrid again, that will be the first place I check.