Where I live, we just got Jersey Mike's. It is good, but overpriced. We already have City Bites here for good sandwiches. It is more expensive than Subway, but less than JM's or JJ's. AND, City Bites has the famous (or infamous) bathrooms. In their original space, one of the stalls in the men's and women's bathrooms each had floor to ceiling 1 way glass on the wall between the stall and the dining area of the restaurant. So basically, you could sit in a stall with the entire restaurant visible to you. You can see everyone in the restaurant, all they see is a mirror.
Yes, I have tried it. And if the question you had was a little more personal... yes, #1 and #2. And without a doubt; yes, it feels as weird as you think it might. They have since moved into a newer space. And the new space would not allow for floor to ceiling glass in the corner with the bathrooms. But they did put a big one way glass mirror right in one of the stalls. It is less strange, but still a pretty weird feeling.