We stayed in the apartment for 4 weeks. The communication with Helena was very good and her husband, who we met at the apartment, when we moved in, was also really nice and helpful. The apartment itself looked like on the photos and was well equipped. The only thing to be aware of is that the smaller bedroom does not have a window or AC, so that it can be hot and stuffy. But you can move on the couch instead, so that´s no big deal. The apartment is located very central (10 minutes walk to Puerta del Sol), so that it can be noisy during the nights. All in all we really enjoyed our time in Helena´s apartment and would recommend it.