I really enjoyed my stay at this flat. The self check-in was clear, having codes rather than lock and key to the doors was very convenient. The neighborhood is absolutely wonderful with good cafes and restaurants nearby. Best of all the apartment is quiet yet centrally located and the washing machine worked well. Nahuel responded quickly to our questions and provided nice suggestions to nearby cafes.
The apartment does need some minor repairs: the toilet paper holder in the front bathroom fell off the wall, only one towel holder in back bathroom, apparently the other bath towel holder fell off the wall as the hardware was in the closet. The walls have seen a lot of wear and tear and could use repainting. The most disappointing part was the mattress in the back bedroom was too firm and uncomfortable for me. The friend I was traveling with found the bed in the front bedroom comfortable.
Overall, I would recommend this well located, quiet flat which helped to make my first visit to Madrid a memorable experience.