Carlos and Valeria were great hosts. Carlos was very friendly when I met him for check-in, just a very warm human being, and fairly flexible with check-in time. (He let me drop my bags off before the room was ready, which was great.)
Place was clean, rooftop view is excellent, and even in the summer heat it stayed pretty cool inside. Bathroom setup is a bit strange because the shower sprays almost directly on the toilet—so make sure you do your business before you shower, or you're going to have to do some seat drying. This is one of the most spacious of these mini-rooftop apartments I stayed in during my trip though, and overall it was an excellent place to finish out my travels in CDMX.