I own a Shun 8” Chef and it is the sharpest knife I have ever used. It is by comparison sharper than the Wusthof that I own. I do feel you hit a point of diminishing returns with Shun. It is sharper but, $50 bucks sharper, I don’t know, my Wusthof is **** sharp. If you have a thing for knives, get one, they are beautiful and a pleasure to use.
Unfortunately, my Shun knife has not made me a better cook and stuff tastes the same as it did before, it just makes prep a bit more fun. That said, you will have to pry my Shun from my cold dead hands.