To me this is the best place to get tacos in Toronto (much better than El Asador). While the quality here does not quite match the best tacos you can get in Cali, they are nevertheless very good (regardless of what city) and stand on their own merit.
To me the three best tacos are the al pastor, chorizo, and tinga in that order. The steak tacos are also very good. House made guacamole is solid but missing a little something (possibly some extra salt?).
Red and Green sauces at the table are very flavourful and both pack good heat. Corn tortillas are soft and fresh.
Tamarindo, Horchata and Jamaica juices are all very good and worth getting in place of beer or soda.
One downside is the lack of A/C in the summer (although being a taco joint this is kind of par for the course) which means be prepared to sweat while eating if you can't get a seat on the patio (whatever, it's worth it).
In short, I go here at least once a month when ever I need to fix a taco craving.