I've been to Sushi Rock dozens of times because my son loves their wanton soup. The sushi is disgusting. Old, stinky fish. The service can be very hit and miss. The sushi chefs are slow and sloppy. The kitchen staff consistently undercooks broccoli and over cook fish, sprouts, vegetables, etc.
Definitely a place to avoid. Other sushi in the area isn't great, but Sushi Rock is the worst.