As someone mentioned in a review I read earlier, it's best to think of Sushi Express as fast-food sushi.
Similar to a fast food joint, Sushi Express is quick, easy and cheap. The taste is acceptable, but not anything to write home about. The sushi, although made-to-order before my eyes, did not taste fresh to me. A little rubbery, a little stale, a little off. I attribute this to ingredients that are not fresh.
When the price-value equation comes into play, this restaurant is an acceptable substitution to fast food... somewhere I'd visit alone or with old friends, not a place I would want to bring a date or my parents to.
Pros: Quickly-made sushi at a great Value
Cons: Forgettable; Ingredients not of High-Quality.