Cristina's place is in the absolute perfect location - right around the corner from Cafe Nin, which has the freshest, most delicious pastries that melt in your mouth, a short 2 minute walk to nightlife and Av. Paseo de la Reforma which has all the shops and amenities you could possibly need.
Cristina's place is tastefully decorated in modern, minimalism style with thoughtful, local Mexican art. The apartment has one of the most comfortable beds I've slept on in an Airbnb and includes all the basic amenities, though doesn't have a TV - if you want the best possible location to experience things first hand, this isn't an issue. The rooftop terrace is a gem and we had the entire building to ourselves at night.
Check-in/ out was about as easy as it gets and Alfredo was on hand to offer plenty of local tips. I would definitely recommend.