Despite Government acabus being in the city over a year I still opt for the colorful bus you see in the photo, which I lovingly call a ghetto bus. Currently 8 pesos to ride and they generally go pretty fast with loud music.
For 9.5 pesos you get a nicer air conditioned but still private bus. Acabus requires cards and bus stops and from what I can tell is too inconvenient for me, especially when ghetto busses are so fun.
Steepshot