Carmen's apartment is a simple, tastefully decorated place in the middle of Roma Norte. It's in a charming old building close to really nice restaurants and bars with an amazing coffee place (which is great for working) right next door. Wifi was mostly good and fast enough for video calls except for one or two days in my monthlong stay when it was slow. Water pressure was good for showering, washing dishes etc but not always the best coming out of the sinks. No TV (which matches the listing) so you'll need a device if you want to stream videos. The kitchen was pretty basic but had pots/pans and cooking utensils. If you cook frequently or plan on making any elaborate meals, this might not be for you. With so many great restaurants nearby, this wasn't an issue for me.
Generally I had a pleasant stay, but unfortunately after my first week construction was begun on 2 units in the building. There was a lot of noise during the day, and the water was turned off for several hours one day. The construction seemed to be unexpected, and was supposed to last for 6 weeks from late June. It probably would not affect your stay here, but something to be mindful of if you were to book soon.
Carmen was a great host, was available to help with any glitches, and check-in/communication was excellent. The apartment was fine for my medium-length stay in Roma Norte and I would recommend it as a simple, (mostly) quiet place central to a lot of activities in Mexico City.