Easy walking distance to subway, zocalo, restaurants nearby. Every day a new Mexican breakfast, always delicious. Construction going on next door when we stayed, walls are a bit thin (just plywood in some of the bathrooms) so could be noisy.
We enjoyed our stay at La Querencia. Eduardo and Pico were very nice and helpful, and the house had a lot of character. The house was across from a small park, a block away from the metro, and walking distance from bars and restaurants - a perfect location. Breakfast was a good way to start the day as well. Our room was fairly basic and the mattress a little hard - but it all made it feel like you were staying at someone's house (a good thing).
I liked the staff. They gave me a lot of information. Also what I loved was that I was out there for the new year and they celebrate with many mexican traditions and I was invited to join them. Made my trip amazing. I would stay again! Breakfast everyday!