First off, these guys are great. Fun to hang out with and very helpful with our bags, arranging taxis, suggestions for the city, etc. Always great communication. We walked to the Zocalo to see Diego Rivera's murals, had several tasty meals near their flat on a pedestrians-only area. Their home is nicely decorated with lots of plants and of course their killer patio. Arquimedes even made bread for us. The shower is hot and the hosts are very considerate in allowing you free use of the shared bath. On Saturday night, the nightclub down the street can require earplugs. Otherwise, their 3rd floor location is quiet given its proximity to the Historic district. Safe as well.