We stayed in a newly remodeled space with a bedroom large enough for two and a small but quite clean and adequate bathroom. On short notice, we ended up with a third guest and Penelope was able to accommodate us with an extra mattress on the floor. Positives were easy to find location, good neighborhood, and a nice rooftop patio area for eating, enjoying a beer, or just watching the sunset. Negatives are access to the studio we stayed in required climbing clear to the roof and then navigating a small spiral staircase to get down to the bedroom and bath. Might be great for younger back-packer guests, but is a drawback for anyone traveling with more luggage or with physical limitations (like being a recent back surgery patient!).
10-15 minute walk from a couple different metro stops, and the Condesa neighborhood has plenty of places to eat and relax.