I've got weak taste so I mostly don't notice the difference between 8/10 sushi and 10/10 sushi.

We have basically a 8/10 hole-in-the-wall sushi place near us, and the owner and a senior waiter know my husband and I, and so as soon as we walk in, they just bring us to our seat (they know our preferred seats) and start getting us our normal order and ask if we want any modifications to our normal order.

And then I go to NYC or London or Hong Kong top sushi restaurants for 3x the price when I'm there, and to me it's only like 1.1x as good as my local hole-in-the-wall place. The difference I notice is consistency. The tuna in my local place varies a little bit whereas the tuna at the expensive places is more consistent, but the top-ends of both are similar to me. As a result my default favorite place is honestly just my local spot so far since they're my dudes. Haven't been to Japan yet though.

Cairo is not a great sushi place, so when I live there for part of each year even at fancy places I'd put it at 6/10 or 7/10. I notice their weakness vs my preferred American local spot. Egypt is amazing at grilled fish, though. Haven't found better grilled fish outside of Alexandria and Cairo.

Steaks hit me harder in the top end than sushi for some reason. I'm more picky between 10/10 steak and 8/10 steak than 10/10 tuna and 8/10 tuna.