What a fantastic apartment! I stayed there 6 weeks, it is perfect in every sense:
200 Mbit Internet, comfortable soft sofa/spacious living room, comfortable beds/expensive mattresses, large Television, perfect kitchen equipment for gourmet cooking (the owner lives there himself at times) , large fridge, new washing machine with dryer, good cleaning equipment.
The building has attentive doormen, a very central location, Uber rides are always available, and it is a very, very secure area as many buildings of the police and different justice departments are near, at least 10 police cars are always in the area patrolling (you may hear the sirens regularly though). Grocery/Shopping/Food Delivery by Uber App is always easy, the doormen will call you when it arrives. Small Grocery is nearby, but I recommend delivery from Chedraui or Soriana.
As Fitness Gym for foreigners nearby I recommend ELEMENT FITNESS on Eje Central Lázaro Cárdenas for 600 Pesos per month or on a weekly/daily rate (Smart Fit for example requires a resident tax number and a local bank account or local credit card, and even then space must be reserved online, whereas Element Fitness is completely hassle free with cash and without complicated paperwork or reservations required - you train when you want as long as you want!).