The apartment delivers exactly what the owner promises. Clean, affordable, good accommodation, with multiple services, including washer and dryer. The apartment is in what I consider one of the best and most dynamic parts of Madrid --Quintana. It is 5 minutes walking to the subway/metro, and you enter on Line 5 that runs from Alameda de Osuna to Casa de Campo going across all Madrid. In 15 minutes you are in Puerta del Sol via Gran Via. So, lots of access to the city. The Quintana neighborhood is very diverse, with a lot of immigrants from latin america who add a lot of color and richness to the city. I always felt safe. I walked two in the mroning and never ever had a problem. There is a wonderful supermarket next door (Supercore) which is perhaps a little bit prizy but it is really good. Many, many MANY bars and restaurants with plato del día (12 euros for a three course meal), bakeries for coffee and pastries, and one of the best things in Madrid; fruterías, about half a dozen of them within walkng distance and open until midnight. Quality fresh fruit for pennies on the dollar: figs, tomatoes, plums, cherries, I mean real fruit not the thing you eat in the US, but true fruit with flavor. I would buy a box of figs and eat them in the street just looking at people walk by.
The main street is Alcala which is busy and very noisy. But the apartment is to the back of the building, so you will not hear traffic; you will hear the younger people who do botellon everywhere. But the house is equipped with excellent double-pane windows that cancel the noise even if there are people speaking right under your window at night. The air-conditioning works very well. In sum we really enjoyed our stay even though we were still in the middle of the pandemic and the city was not up to its full potential. But, we will go back