Unique is an understatement. This apartment isn't just a place to stay but an experience. It has the kind of clever design that maximizes space and light -- and explains why there are people who get so excited about design, because when design is done well, it makes you feel good to be in the space. And the indoor/outdoor living is a pure delight. Even on chilly November days, it was warm and sunny on the terrace in the afternoon. One tiny imperfection is that there isn't an electrical outlet by the bed, but they're pretty much everywhere else. As others have said, it's a great location in Malasaña, and, as others have also said, despite the area being very popular and populated, you don't really hear anything, even outside, except when performers use amplification while singing on the plaza at mealtimes. To top it off, the apartment is kept pristinely clean, and Seo was easy to communicate with and graciously accommodating. i found it very hard to leave.