Like many, I seem to only visit Burrito Drive when I'm out on the town visit local bars. Any quick Mexican food is going to be a winner in my book, and I like the salsa varieties that Burrito Drive offers (pico, medium red, medium green, hot red). Their use of sweet potato puree in a few of their burritos is fantastic, and the ShehMehNeh is definitely a favorite.
A few low points: there are no nachos on the menu and this KILLS me. The closest you can get is a basket of chips and salsa or chips and guacamole. Big bummer.
Delivery can be tricky. A few years ago I had an unfortunate incident where I had paid by credit card for my delivery order online. Upon receiving my order, I was asked for payment. Assuming something hadn't worked with my card I paid cash and later realized my card was also charged. I called the store the next day, and played phone tag with the manager multiple times about the issue without resolution. I eventually gave up, and now have a good story about paying $25 for a burrito. Lesson learned...