Great value for money in an amazing location. You can't go wrong with it if you want to be close to restaurants and bars, even Bosques de Chapultepec park is a short walk away.
The place is nice and clean, just keep in mind the building is quite old so you'll have squeeky wooden floors and stuff like that. In any case is a good place for 4 people and the owner is quick to answer and always willing to help. My family and I had a lovely stay at Oscar's place.