GREAT location literally a block away from Gran Via! Even though Gran Via is so busy almost all the time as soon as you reach the block of the apartment it quickly becomes calmer. I was even allowed to check in early which I really appreciate and that helped me so much. Check in was easy and German and his brother were always very friendly, welcoming, and quick to answer my questions and they were always very easy to contact. My friend and I were comfortable with the amount of space we had during our stay. For the most part it is fairly quiet at night right outside the building but since it is close to such a lively area occasionally at night you may hear people outside so if you are a very light sleeper you may want to bring ear plugs like my friend did. This was not an issue for me. Given the apartment is right in the middle of one of the most popular parts of the city, it is not surprising to hear some occasional noise from the outside:) I live in New York City and I definitely do from time to time. Thank you German!