Heart of Roma Norte. Quiet at night. Close to the subway (although parts of line 1 are under major renovations as of writing). Close to everything, including world-class food (whether street or restaurant). Felt safe at all hours. Eva gets back to you very quickly and delivers meaningful help. (At one point, the modem spontaneous died, and Eva got on the phone with tech and translated for us, and ultimately got the phone company to attend on very short notice and replace the unit.) Wi-fi was fast and reliable. It's common for CDMX units to not have heat or air conditioning, and the temperature was great all month (November). Honestly, this was a pretty incredible stay with a great host. We spent a lot of time researching this and were very happy with our choice. Currently has a ~4.9 rating and that's about right. In terms of critical comments, the shower doesn't get steamy-hot, but that was fine for us and we didn't bring it up.