Extremely cheap, and shockingly fast - but the food quality is as mediocre as one would expect. There's a lunch special here for $4.99, which gets you two rolls of your choice and a drink - it's pretty much the highest sushi/dollar ratio you'll find within a few kilometres' radius.
That said, my friend and I tried the AYCE here - and were left wishing that we had ordered à la carte instead. The first order comes quickly, but the subsequent ones take ages - clearly, the restaurant is well aware of one-hour lunch limits, and wants to mitigate its costs.
Rolls are sparse on the fish, somewhat small, and only loosely packed (anyone with chopstick skills short of masterful will struggle). The chicken fried rice was absolutely terrible - it was almost devoid of chicken, and the rice itself tasted day-old. Service is sporadic and brusque.
Summary: come here for the quick and dirty lunch specials, not for a sit-down.