We had a lovely stay in Madrid at this centrally located flat with all of the things we needed for a pleasant stay. Our hosts were helpful and attentive - when we had a brief problem with the keys they were on-site in no time to fix the problem without any interruption to our schedule. The kitchen is well-stocked - lots of dishes, detergent for the dishwasher and washing machine, and a big fridge that’s easy to fill with items from the 24/7 supermarket (CarreFour) that’s located only a block away.
We really loved the location - the street is calm and quiet but you’re literally two blocks away from Plaza Mayor and all of the action just beyond it: Calle Gran Via, Puerta del Sol, and tons of shops and restaurants.
We only had three extremely minor complaints: the floor was uneven in some areas of the master bedroom, the linens/towels were not high quality, and the wifi was very slow. But again those things were minor and the apartment was beautifully decorated, well-furnished, and had great air conditioning for when the weather started to heat up. Would stay there again and recommend to friends!