I really enjoyed my stay at Ivan's home... he's a nice and interesting guy who really goes out of his way to make sure visitors are happy and comfortable. The apartment is clean and secure and has all the amenities you'd need. Bonus points for a nice big shower with endless hot water. Extra bonus points for all the great art on the walls :) The location is convenient... I walked to both the Zócalo and Condesa and there is a super market on the same block. I hope to stay there again when I next visit Mexico City...