This is my favorite lunch option in Grand Rapids (downtown area). I like being able to get in and out quickly, and the two-roll combo is $9. There are a lot of options. My favorites are the spicy tuna and Philadelphia rolls. The ingredients are always fresh, the employee working to take orders is always very friendly, and they are efficient and quick.
I also noticed they have a handful of rolls that can be made gluten free.
Local guide tip: Downtown Market offers first half-hour of parking for free. You can also access the Downtown Market using the free DASH bus.