Our family of 2 adults and 2 kids fit perfectly in this apartment. The kitchen is well-stocked. The bathroom is nice. Lots of storage in the closet in the bedroom. Very functional. The apartment is on the 5th floor (an elevator is available) and we enjoyed the view of the Madrid skyline from the small balcony.
Shey was very responsive to my questions.
The location is great. You can walk to many major sites in 15 minutes or less. A metro station is immediately outside the door but we did not even need to use it because of the walkability and great rates for Ubers. There are a couple of grocery stores right on the block, and the area has a theatre/arts vibe. We got a kick out of watching the dance classes going on in the next door building in the evenings.