One of best located places I've ever stayed in CDMX, in a excellent neighborhood just blocks from transit, shopping, restaurants, bars and parks. The space is comfortable, efficient and well-organized, with excellent WiFi, a great well-supplied kitchen, a very comfortable bed and all the other amenities as advertised. The building is safe, well-lit, and the elevator is perhaps an antique but very functional.
As said in other reviews, it's three floors above an Irish Pub, which is a part of the vibrant neighborhood. But, if your plans do not include being up until 3 AM on the weekends, bring some earplugs and plan to keep the double-paned windows closed (the smoke from the patrons on the sidewalk carries up into the apartment, despite the "No Fumar" signs outside the bar).
Will definitely return to this gem in Barrio Roma; it was one my my most enjoyable stays in CDMX in the last several years.