Amazing location if you want to be within walking distance of the Zocalo and public transport. Excellent food right outside the building door and steps away. You are literally in the center of everything. Very non descript entrance (you'll miss if not paying attention!), that opens into a clean, apartment building. The apartment is spacious, clean with a huge bed (queen or king). Extra linens, towels and pillows are in the cabinets. The apartment has everything you need - just open the cabinets (this gives the place a less "junky" appearance which I liked). Good water pressure! Be careful with the hot water....it works really well. Has A/C (I didn't use, was cool enough in January). Great place, I will definitely stay again!
Pros: Location!! Location! Location! Size of bed. Cleanliness. Extras. Food is everywhere within a 1/4 mile radius - I didn't even use a plate at this apartment. Patisserie Madrid has amazing baked goods and coffee. (Guys - please don't go to Mexico and drink Starbucks... 'cmon… Mexican coffee is awesome). Pharmacies and ATM machines are also everywhere. I felt very safe, the front door is keycard access and the apartment uses a regular key. People in the building are friendly and will respond if you have a question. The cost for my time spent was unbeatable. Host response to questions was timely, she kept in touch all the time. Laundry services on site, the machines are marked Airbnb.
Cons: Location (here's why): this may be an issue if you are not used to city noises, traffic, people, music. It was not a "con" for me, I actually liked hearing the delivery trucks and stores opening for the day. So if you are a light sleeper or need absolute silence to sleep bring earplugs; I had no issue sleeping once my head hit that pillow.
General note: the elevator was under construction while I was there, and the host alerted me to this ahead of my trip. So if you have issues climbing 5 flights of stairs (especially with suitcases) - let your host know. I needed it because of all the food I ate, so I was fine by the second day.
Wifi works great when you're in the apartment, but have a backup plan or coverage when you're out and about. I just talked to people and used the payphone (yes! they have working pay phones). Mexico City was a friendly, clean city, with amazing sites! This apartment is a perfect base location to discover the city. Enjoy your stay!