I should clarify that the holes in the wall (outer market) are still there. You may still visit them. But you were also able sometimes to enter the inner market, the big curved warehouse, where the actual fish market is, and that has been moved to Toyosu.
No offense but probably a placebo effect? Sushi is fine there but the restaurants were always a bit of a tourist trap. Best sushi in the city is not there.
I won't argue where the "best" sushi is, but have you tried shutoku honten? It's pretty great.
Don’t think so, it was flat out just great without any pretentious nonsense. Never had fish that fresh. Hard to find that combo in the USA, let alone on an alley at 2am.