Very very nice apartment and building. Very secure. You can spend days exploring the nearby restaurants and shops, and then you are a 15 minute walk or 5 minute Uber from the oldest historic sights in the city.
The apartment gets a good breeze from the large windows, but you are on a high-traffic square (great view) so don't expect quiet. This is the real Mexico City, not a tourist/expat haven, so if that is what you want it's perfect.