Drove past a truck near my cousin's place in Phoenix last summer and the same thing happened to me. Their carne asada fries were unreal, crispy fries, tons of melty cheese, meat piled high, and I told everyone I knew about that truck. Went back a week later and tried the chicken quesadilla and it was just sad, barely any chicken and the tortilla was soggy in the middle. My cousin got a hot dog from there once too and said it tasted like it had been sitting out since breakfast. Guess every truck has that one thing they actually care about making right and everything else is just there to fill out the menu.