Super charming space. Amenities as listed, beds of more firm quality. Filtered water available - a major plus to me. The location is rather quite - which is nice for sleeping, and only a short walk to some of the must see sites and institutions in the Historic Centre. Also close to really good food establishments, including Cafe de Tacuba and Cafe Popular - which we hit up multiple times. For the food inclined, there are also great bakeries with all the pan dulce you could dream of, Esperanza and the understated gem, La Vasconia. At the time there was a threshold where there were more visible folks living on the streets, passing just the first intersection to the right of the exit, which can be discomforting to certain travelers, not myself. We used Ubers most days. But generally the area felt safe to me, day and evening.
We worked with Victor, and he was prompt with responses, including check in and check out. I would absolutely consider 18th Century for a future visit!