Hibiki is a restaurant with a nice ambiance and overall welcoming atmosphere, but the same cannot be said for its staff.
The attitude and helpfulness varies and some staff are more likely to provide top notch service if you seem to have the buck to pay for it. (e.g. you may or may not have your sake poured for you).
The food is good quality, they have a wide variety of sashimi seafood and are very fresh.
I would recommend the sushi, sashimi and robata yaki portion of the menu. Ramen was lack luster and was not comparable to the other items on the menu.
Recommendation: if you're not planning to spend $50 on dinner then go somewhere else. Dress nicely if you want to be served like a valued customer.