Bernardo was a great host, and a funny, chilled out guy. His house was exactly like the photos and located right near a metro station and in the heart of the historical town centre. We arrived very, very early in the morning and he was waiting at the door to greet us. He wasn't able to give us the room straight away because he had people checking out that day (our bad, early arrival), but happily let us leave our bags, made me a tea and we checked out the local area. There are some dodgy places to eat around Mexico City, but Bernardo will send you in the right direction. We had a great time! Definitely recommend staying with him and his lovely wife :)