The location of the apartment is excellent with all the museums in walking distance. The local grocery stores and pharmacy are right around the corner, open till 23:00 sometimes. It is perfect to walk to Gran Via and sit at the terrace for a drink.
The apartment itself is clean and quite eclectic. It does not have a window overlooking the street, so if you’re not sticky about not having a street view, this apartment is very good in all other aspects.
The hosts are great and helpful with sharing tips for travel and eating if needed. Very warm and always reachable.
My recommendation would be to get your own airport transfers, especially on the day you have to fly back. Cabify app is reliable and very affordable.
In summary, this is an apartment at a fantastic location with welcoming hosts.