We have been to Hayashi for sushi several times now and I am only reviewing based on sushi in the bar and "sushi room'. We have not done the hibatchi although that looks pretty cool if you are in to the Benihana sort of thing.
The restaurant is large and nicely decorated. The portion size is good, and they have a decent selection of rolls. However, service has been spotty from a mostly apathetic staff. The pride and warmth that usually comes from serving Japanese cuisine is missing although it seems to be getting better the longer they are open. It should not be an excuse for a restaurant, but we have always been there on the weekends when they are busist.
Summary:
3 stars. Pros: Fresh fish, good selection, nice ambiance. Cons: Large restaurant and staff that feel impersonal.