This apartment was very clean, well equipped and at a great location. The most important feature is that we felt safe and it is in a nice building (elevator, washer, dryer). Carlos was very helpful and gave us good recommendations for restaurants.
The apartment is in walking distance to tourist areas (Plaza Major, Plaza de Sol, Gran Via, museums, parks...) but also to local tapas bars and restaurants.
We were a family of four and had to compromise because it was a bit tight; I think it will be more than comfortable for a family of three.
We were so happy with our stay that we returned a 2nd time just after a week of driving through the south of Spain.
We will definitely stay at this apartment in a future visit to Madrid.