This is a great option if you are looking for something different and quick in a fast food plaza.
Mr. Sub hasn't really made the inroads into the consumer mindset like a subway or quiznos has. It's got some staples but really doesn't offer much to differentiate it...in fact many people in the area drive a few minutes north to where a subway is located.
Subs tend to be on the small size especially in comparison to their bigger Subway cousins.
The seating space is small, which makes sense as most of the clientele in the area is coming to grab something for the desk.
For me, it's been a place to grab something when I want variety from tim's or wendy's.