If you are a solo traveler (like me) or a couple visiting Mexico City, you should definitely stay at Jose y Violeta's room.
They are excellent hosts - welcoming, attentive, funny, friendly - the list goes on. They made me feel at home and like an old friend of theirs, which I think is a special and rare gift to have. The room is clean and spacious, the bathroom is perfectly fine, the kitchen and living room are very pleasant and well decorated, the wifi works well. The location is amazing - in the heart of Condesa/Roma Norte neighborhood - close proximity to cool restaurants, bars, and parks. It's nestled close to Chapultepec and in between el Centro and Coyoacán, making for convenient trips around the vast city.
Added bonus: their cat and dog are adorable and so friendly. Strongly recommend! Gracias José y Violeta!