This is a great spot to stay in the city. The apartment is spacious and airy, with a floor to ceiling window overlooking the park and the skyline of high rises along Av. Paseo de la Reforma; you can catch the light show on the BBVA building after dusk.
Walk around the park and the radiating streets to take in the architecture and the calm of this neighborhood; there are plenty of shops and restaurants to wander into. It's a short walking distance from great spots — Churrería El Moro, Tacos Hola, Volador Café, Azul Condesa — as well as a supermarket, a convenience store, a Starbucks and a wide array of international dining options. There is a subway station and a rapid bus stop within 5-8 min walk from the apartment.
The park does get busy on the weekend, so you probably don't want to sleep in too late. Also note that one of the three bedrooms is much smaller than the other two, but all three have separate full bathrooms. If you choose to cook, there is a full spacious kitchen and a dining area.
Marianna was a great host — very responsive and with just the right information. A very easy check-in/check-out experience. I'll definitely consider this apartment for my next stay.