This place is a real gem. It's in a fantastic location, close to the Plaza Mayor, but in a less busy street than most. It's very well maintained and recently updated. This place is run like a business. The communication and responsiveness of the managers is outstanding. The beds are comfortable and the linens and towels are of excellent quality.
If I had to suggest something to a future guest is to bring silicone ear plugs, or noise-cancelling headphones. I had mine, and it made the noise from the bar across the street (only affects one of the bedrooms) not an issue at all. The noise, extending to the wee hours of the morning, is only an issue on Friday and Saturday. Noise is to be expected pretty much at every Airbnb in Madrid that has a good location. The nice quality double pane windows help, but if you have earplugs or headphones, better still. Nice job, Tellez Family, I would definitely stay here again!