Luz was super responsive and helpful as we prepared for our trip.
The apartment itself is completely unique - I haven't seen an apartment like it. The garden was wonderfully green, and secluded. The location is pretty good, with amenities nearby and a twenty minute walk to downtown Coyoacan.
The apartment is quiet at night, though if you sleep late (9:30-10am) there's some construction noise from the workshop next door.
I'd highly recommend Liz's apartment - it felt unlike any other AirBnB I've stayed at.