As I'm still waiting for my 2 XL (UK one's aren't shipped until 14th Nov) I popped back to the shop to look at the screen again today (I tend to do so every week or so to re-assure myself after reading negative opinion online.) Once again, I came away happy, because the screen is great.
It's not perfect, and it's not as good as Samsung - let's make that clear. The blue tint is there, although to me it's hardly noticeable if you're not looking at it (on that unit, clearly others have units which have a much bigger tint). Apart from the blue tint though, it's a beautiful screen.
The problem seems to be the variance in screens, with some having real problems. But if the phone in the shop is the Pixel 2XL as it should be (great, but not industry leading, has blue shift) then that's what I want!