Port of Subs is my favorite sandwich shop hands down! I started going here for lunch when I was at ASU. I love that they have so many different sandwich combinations, some with meats/cheese I had never thought of to try together. I appreciate that they have Sourdough bread and sliced cheddar cheese which competitors rarely carry.
Everything here is sliced fresh right in front of you. The veggies are always fresh and crisp too, the bread is soft and chewy, etc etc. It smells nice and you won't leave with that weird sandwich smell attached to you.
The customer service at this location is pretty good. Even during the lunch rush, the line moves rather quickly. They have plenty of outlets and USB ports, too. The only thing that is somewhat unfortunate is that they don't have a customer restroom.