Great stay! The room was very comfortable, spacious, and clean, with all the necessary amenities. The staff was very helpful and friendly. The location was superb, I don't think you can find a better spot for the quality and price. It is close to museums, El Retiro Park, and tons of bars and restaurants. There are metro and bus stations very close by, but you can pretty much walk anywhere.
The only downside is that the walls are a little thin, so you can hear other guests from your room, but it’s nothing to complain about. The thick double-glazed windows work wonders, so there was no street noise at all. Slept like a rock during my stay.