Viviana's place is so nice! I stayed for 1 week and really enjoyed my time there. Just a 2/3 min walk to subway, shops, restaurants and the bus to the airport (number 160) goes from just round the corner (for 7 pesos!).
The bed is super comfy and there is traffic noise from the street but I am a light sleeper and with my earplugs in I slept perfectly well.
Convenient location, great host and good value, what more can you expect?!
Highly recommend.