I am a sushi maven from way back. I am originally from New York so I have eaten the best of the best. That said, the sushi at Natori is "good" but definitely nothing to write home about. I go there for takeout lunch because it's near my office but otherwise I take my business to Murasaki in West Hartford.
Pros: Cheap, convenient location. Sushi is consistent.
Cons: Sushi not of the best quality. The atmosphere is meh.