I highly reccomend this amazing apartment! Very clean, comfortable, airy and nicely decorated, with spectacular terrace, nice bathroom with bathtub, good and well equipped kitchen, comfy bed and all amenities you could want (except maybe a hairdryer so bring your own if you use one).
The apartment is not in the most touristic part of town, which is really nice. There are lots of nice shops and restaurants in the same quarter and you can easily walk to Malasana, Sol and the old town. There are also serval subways nearby.
Monica and Cesar are easy to communicate with and check-in and check-out was very convenient. They even left us some breakfast.
Me and my husband loved our stay in this apartment and would love to come back!