This place is under-advertised and over-visited. They're open for breakfast at 7am but they close after lunch at 2pm, so come early. The menu us huge and the same people have been working there forever. The food is fresh and the staff is friendly. Service is super-fast. When you walk in look for a laminated menu (there's not one on the wall behind the counter.)
My favorite sub is the #49 with turkey, avocado, bacon, tomato, and sprouts.
This is a perfect spot to grab a quick lunch.