Great apartment with fantastic views. Plenty of restaurants nearby; check out the booklet they have.
Bed was super comfortable and the shower amazing (we'd been in Seville for several days with semi-decent water pressure/heat). The apartment is very well laid out. We were only there for one night but I want to visit Madrid again for a week or so and I will start by checking availability for this place.
Carlos was super communicative and the apartment cleaner very nice and helpful. While we had a language barrier, she didn't let that stop me from understanding what we needed to know regarding A/C, keys, shutting the door, kitchen, etc etc. Very nice lady.