Fantastic vegetarian-friendly casual fare. They will make anything on the menu for you with mock meat. Their burgers and burritos are fantastic and they take condiments to the next level.
They have lots of different flavored mayos. The wasabi and red pepper ones are both fantastic. The gravy is also great - and vegetarian. And be sure to try the hot sauce at every table.
The one downside for me is the wait. Not the amount of time, you have to expect that from most "hot" places. But that despite the popularity, the staff always seems completely unprepared to deal with the lineup - and the venue is set up in such a way that there is no waiting area, making an ever increasing amount of people wait in the doorway.