Stylish, contemporary, well designed space. Had all necessary amenities. Super clean with crisp linens, bedding, generous shampoo, soap, detergents. Great host. Very responsive and helped with the settling in. Fabulous location. Great restaurants, groceries, churros, creperies, pharmacy within a block, even found a usb cable at the local super market. Yet, not noisy. Very well situated for Madrid sightseeing.
One caveat, it is a smoking place. We stayed here twice. 3 nights followed by 1 night two weeks later. The first time, we stayed, the prior guests had not smoked in the apartment. There were ashtrays provided, but it didn't dawn on me that the next time, I might be staying there after a smoker. That's not desirable for me. So, you should confirm with the host on their policy, depending on wether you are a smoker on not.