Enrique's place is absolutely amazing. It's at advertised and in a good, authentic part of town. I was welcomed by Enrique's brother and the doorman, who made sure I had everything I needed for my stay when I arrived. There was a nice jug of water there as well for me (and some fresh fruit). The apartment is close to Mercado Hidalgo, which is a market with all types of food (I ate there more than once). On the fifth floor, I found that the apartment had everything I needed and was very comfortable and clean.
Enrique was on hand and very responsive with my questions about the town. There were no issues with the stay or the apartment. The apartment is close to two subway lines (just a few blocks away in each direction) and easily found by Uber.
Absolutely a great place for a self traveler who wants to experience an authentic Mexican adventure.