We have just returned from a fantastic stay at Mara's apartment. It's just as it appears in the pictures - spotlessly clean and modern. Comfy bed, good sized TV, air con. We didn't end up cooking while we were there but the kitchen is well equipped with utensils, hobs, microwave, fridge, coffee machine, etc. Mara even left us some complimentary croissants, milk, juices and a bottle of wine which was a really nice touch.
The apartment is in a central neighbourhood and has many bars and restaurants close by. We really liked this neighbourhood as it was central (we could walk everywhere) but not overly touristy. Mara was responsive if we had any questions and also gave us loads of great suggestions of the must see things in the city as well as restaurant recommendations. We would definitely recommend the apartment for a comfortable stay in Madrid.