Interesting concept, its like a chipotle but for sushi.
I would give this place a 2.5, there weren't a lot of variety to "make" your sushi compared to the restaurants that you order from the menus. I think to enjoy this place you should really know what goes well in a sushi roll. Mine came out to be not as flavorful as I would have liked while a friend's came out really well. I guess it all depends on what you put into your sushi roll. I also ordered the California roll, all it had was imitation crab stick, cucumbers, and avocado. Don't order it. It was very plain! I've had better California rolls...
Another negative thing that stood out was what they called "tempura" which you could top if off on your sushi roll, it looked like rice krispies and it tasted like rice krispies. Avoid using that as your topping.