I highly recommend this apartment to anyone visiting Madrid! I stayed here for 2 months while doing research, but it would be equally enjoyable for a short stay as well. The location couldn't be better (walking distance to plenty of great things to see/do/eat, close to 2 metro stops), and although it's a busy neighborhood the street itself is very tranquil. Everything in the apartment is comfortable and easy to use, and Sergio is an excellent host (in particular I appreciated his responsiveness & considerateness). Will definitely return!