I like this place because it is open 24 hours, you get your food fast (even if there's a line), and its a really filling sandwich for $6.
I get the veggie sandwich and my hubby gets the tuna melt and adds on a few free veggies (lettuce, red onion, roasted red peppers, chipotle sauce), and avocado ($.99 upcharge). Both are excellent, flavorful sandwiches.