Not bad for a quick and cheap takeout spot, as long as you manage your expectations. The fish selection is small and the quality is what you'd expect from an all-you-can-eat joint.
Skip the thinly sliced sashimi of "meh!" quality and go for the rolls instead. Lots of filling, surrounded by just a little border of rice which of course is much preferred over the reverse ratio.
Reading other reviews, I knew this place was small but I was still a bit surprised at the size when stepping in to grab some takeout. The entire restaurant is only mildly larger than those convenience stalls on the subway that sell chips and cigarettes. With the constant influx of customers opening the door to get takeout, there isn't a single spot that you can sit in here during the winter without feeling an Elsa-worthy blast.