No they do not make any effort to make Mexican food, and outside of the $5 box thing they are quite pricey.
I miss al pastor which came to Mexico via middleastern immigrants and is cooked on a spit and shaved off all toasty like shawarma or gyros, but is NOT served on flatbread, even though that would help sop up the juices.
If its in the middle of the day I get the $5 box with usually three items and a drink. If its between 2 and 5 (happy hour when drinks are a dollar) I get a Baja Blast Freezy and two or three items off the value menu, $1.29 around here, or a crunchy or cheddar taco for $1.49 which ends up coming to around $5 as well. I never purchase the more expensive items.