The good and the bad. The good: excellent customer service. Melvin and his team were fantastic, attentive, easily accessible. Location is in one of Madrid's best areas.
The bad. You cannot flush toilet paper down the toilet. The toilet is electric. We were not notified of this prior to booking. It would have changed our minds. Also, the photos are a bit misleading. They don't represent the true disrepair of the place.
Bottom line: good place for solo traveler. Bed small for two people, bad toilet, but great customer service in a great neighborhood with great bars and restaurants. If you are someone who normally stays in hostels and pensiones in Madrid, this is a step up. After traveling Spain for almost 20 years, this was a bit disappointing.