My experience was great -- Catalina was very communicative about check-in, and although she wasn't around when I arrived, her son was very friendly and showed me around. The location is great -- you're a 5-10 minute walk from the metro, and you can get to pretty much any of the main spots around Madrid on foot in 10-25 minutes (Sol, Plaza Mayor, Gran Vía, El Retiro, the 3 big museums, etc). There's also a small, free Spanish traditional culture museum right next store that's worth a quick visit. Overall a great stay, definitely recommended!