Stayed with our family of four for two nights. The kids slept on the sofa, which converts to a bed.
Great location, right in the middle of all the major attractions. Plus there are tons of food and grocery options, and the metro is a short walk down a pedestrian-only area.
The place itself is also laid out well. The master bedroom and bathroom are super spacious and the bed is really comfortable!
The only negative is, as others have said, the lack of an elevator is difficult. It's a long climb up to the top floor of a five-story building through a narrow stairwell. We're a very athletic family, too. I would avoid this place if you have a good bit of luggage or don't have the physical ability to climb several flights of stairs.
Overall though we would stay here again.