For the price, almost as good at it gets. I've never had a bad experience here (although service can be a bit slow at times). AYCE lunch is a great deal during weekdays, and the quality is consistently good. It's often fairly crowded-- understandable given the value it offers. As other commenters have noted: the upside of a busy location is that the turnover is high and ingredients are fresh. Respectable selection.
Updated review to reflect quality of surrounding, cheap-ish sushi places. Wakame no longer stands out, and the service isn't fantastic.