Pros:
[1] Location, location, location: perfectly situated in Roma Norte & conveniently next to many fantastic restaurants & bars
[2] The host: Roberto is incredibly friendly & easy to reach
[3] The apartment: wonderful layout for a single traveler or couple; beautifully decorated—albeit a bit quirky
Cons:
[1] Noise: if you're a light sleeper, I'd advise earplugs. While the building itself is quiet, a few birds have nested nearby the apartment's windows and are very active in the morning (i.e. bird noises & wings fluttering against the walls, etc.)