My husband is Japanese and this is an authentic sushi place, the ambience and lighting its not so bright but it's private, I kind of like it actually...
they don't have so many tables so I think this is part of the ambience, the service is very good as you can expect from the Japanese culture, i will totally recommend this place for a date! But make sure to have a reservation in advance.
Of course the food is fresh and tasty and they accommodate if you want something that isn't included on the menu.