I went on a Friday evening with a friend and got the Banh Mi Beef Cheek Sandwich. The lineup was about 5 minutes and a friendly cook calls you up to get your order from the counter. I asked for "mild" but probably would have gone for "medium" or "spicy" since the friend I was with got a "spicy" and she said it wasn't that bad.
The flavours are fantastic and there is a pickled something in the sandwich that adds so much good stuff to the overall experience. Also, I got the sweet potato fries and they were heavenly. I would highly recommend them. They also have Kimchi fries so that may be worth a try the next time I'm there.
Overall, fantastic!