Marta is very kind. She welcomed us in the apartment when we arrived and explained us everything, like places where we could find attractions, restaurants or supermarkets.
The flat is in very good shape, cozy and comfortable. And it is very close to the train station where you can also easily find shuttle bus to airport. It is also close to all the tourist attractions, all in walking distance.
We will choose this apartment again if we visit Madrid in the future.