This place is hands down the best hostel/guest house you could stay in if you're looking for both privacy and likeminded community. Unlike most hostels, you have your own, lockable, private room. Similar to most hostels, you still have common areas, kitchens, bathrooms, etc that are shared by the guests which allow for cool conversation and meeting new people from around the world.
The guest house was in a perfect location, as I could easily get to anywhere in the city by walking or taking an Uber. Everything was super clean and comfortable, while also providing several extra accommodations (iron, stocked kitchen, hot water, etc).
I loved my room. Super ventilated (with a street view from a little overlook/window balcony). I recommend getting this room as to allow for fresh air and an overall more interesting vibe.
The host, Alejandro, was awesome. He was super friendly, helpful, fun to talk to, and available whenever I needed him (which wasn't much, since every bring was laid out so nicely already). He even messaged me after a couple of days to check in on me to make sure I was comfortable and having a good time. Such a cool dude!!
Needless to say, I highly recommend this listing! I would certainly stay here again on another trip to the beautiful, exciting Mexico City!