Quaint, affordable little place in a great location near Chapultepec, a major grocery store, and many restaurants. Not luxurious, but a sufficient refuge after a busy day.
During our stay, we had multiple issues with the water, from the toilet not flushing to the shower not turning on. It took multiple instances of having someone come in and "fix" it for it to actually be resolved. David, however, always responded to messages very quickly, which helped a great deal.
Be aware it is a 4th-floor walk-up, that it has no air conditioning or central heating (there's a plug-in radiator--we didn't use it, as it was mid 70s our whole trip) , and that if you're taller than ~5'10", you'll have to duck through the doors.