Ditto on what most people have said.. the sushi is decent but the concept is so much fun! And if you're starving you don't have to wait to order and then for your food to arrive. Just sit down and start grubbing. It's also great because you don't have a true server you have to tip 20% to. We has lunch there today and ate until we were very full... like "I can't eat another bite full".. and our bill was $28.50 and $4 of that was drinks.
My main complaint is that the staff seems to hate their jobs. Not rude per se, but pretty curt. Not enough to not go back though.