Dangerous area (I was attacked in the apartment street at 9pm and my wallet was stolen) mainly articulated around market and chicken shop workers (very popular during the day and lonely and creepy from early night - 9pm, not to be walked alone), very noisy environment (music from 6am, men "helping cars to circulate" screaming all day long, but none of the windows of the flat are well isolated) and uneducated young men permanently hanging around in the park right outside of the apartment (daily verbal harassment, whether I would wear a skirt or anything else). I have been intermittently living in Mexico for 8 years now so I know how to deal with all this, but I would surely not recommend this area to real foreigners.
Iván is very nice and the apartment is well equipped.