I can explain why a place like this has so many high reviews. Because it is a novelty. In other parts of the world and even in California this sort of "temporary restaurant" is very common, but here in Phoenix, especially in such a suburban area it's a novelty.
I have eaten street tacos all over the country, in places like Miami, New York and LA. These are no where near that quality. The pictures posted here are deceiving, because these tacos are TINY. I imagine some one with an appetite could easily finish each taco in a single bite. In my opinion a full grown, hungry man could easily eat 10 of these tacos. The meat they use is nothing special at all and the only good part is the guacamole they use on them.
A few things to consider though, the red sauce they have is beyond hot and I have a high spicy tolerance. It not only was spicy in the mouth but just a teaspoon of it made me sick all night. Either it was that, or the tacos. The service was friendly no doubt but there is no value and if the food makes you sick why bother? There are a million great places in the Phoenix Valley to get tacos, why waste your time?