We stayed 4 people for 7 nights. The hotel is in a great location, close to everything. Moderny furnished and perfect with a pool on the roof. There was work going on at the rooftop with building a bar by the pool and that will make the rooftop even more great. It's a small pool but it works fine! The staff were really helpful. My remark is on the cleaning of the room. When we arrived there were boarding cards on the floor from the previous guests which gives an indication that it's not properly cleaned. We had one cleaning during our 7 night stay and we felt that the room was not properly cleaned, the mat in the living room was still in the same shape and the corners were not properly cleaned, still some stains on the bathroom sink. The trash were supposed to be picked up everyday between 7 and 10 PM but they forgot about our trash for 2 days so it piled up and we had to find bags ourselved, after letting the staff know they came and picked it up the the day after.
Overall it's a hotel with a great potential, I would definately stay here again if I visit Madrid. However improvement in the cleaning would make it even better.