Diego & Martina's place was great. Located on a main road so it was very easy to get to and navigate around. Everything in La Condesa or Roma was a 10-20 minute walk, and the place is so close to Parque Mexico. The apartment itself was lovely and felt very safe. It is on a 3rd floor walk-up, so not ideal for anyone with disabilities, but for a young couple it was a wonderful, comfortable place to stay.
Additionally, the communication and service with Diego was top notch. He allowed us to store our bags late while we explored before our flight, helped us set up COVID testing to return back to America, and constantly answered any questions or requests within minutes.
I strongly recommend staying here if you're looking for a nice, calm apartment in Mexico City. We will definitely be back soon!