So I went here with Antonia W. and I can confirm the whole arm-barring story. I had first read about this place after reading about it in Eye Weekly so being a pork lover I wanted to check it out.
Base price for a sandwich $6 but toppings are extra, except for the choice of mustard, of which you have two (dijon and whole grain iirc). Th fat content was fine for me and a necessary evil because the meat was very moist and flavourful. The cruncy bits of pork skin really sets this sandwich apart and add great texture to the sandwich. We ordered mushrooms with it but next time I'll order it with only the mustard because the meat is that good that you don't need any extra toppings.
It is primarily a take out place but it's a sandwich, so no problem there. If I'm in the area I would definitely go there again.