I knew it when I saw how hidden the place is from view that they are probably not busy enough to have super fresh sushi.
Then we walked in only to see the sushi showcase glass is not crystal clear but is instead dirty looking because it was not wiped down properly leaving all kinds of streaks. I checked closer, with my fingers, to find the streaks/dirt was in fact on the inside.
Now you can call us stupid because we actually ordered take out. The salmon sashimi was actually quite good - thickly cut, fresh, smooth and just as you would expect. The spicy tuna on the other hand had a strong taste of fish so after we each had a piece of maki, we threw the rest away. It tasted so strong even the spice couldn't cover it up.
House-keeping alone, I will never go back. The not-fresh tuna just seals the deal.
Why would any restaurant open in that hidden lane anyway...