I've been to Sakana numerous times over the years and have good luck here. The food has always been decent and the service good. It's been a while since i last visited. This last visit for lunch was not up to par. First of all, we went at noon, and the place was empty. I have never seen this place empty especially at prime lunch time or even dinner time. I wonder if this was a fluke or if they have lost a lot of their customer base.
The service was fine. The waitress was friendly and attentive. The quality of the food was very average, even wavering on below average. The fish was hard in texture like it had been frozen for too long. The fish was not very flavorful either. I try to eat sushi without dunking it in soy sauce to taste the fish, this had to be dunked in soy. The rolls were not proportionate in rice, fish and vegetables. The rice tasted a little old or undercooked.
The portions are big and it is a good values for your money. If it's quantity you're after, this is the place. But if you'd like a little bit of quality, you may want to go elsewhere