I've played virtually every Pete Dye GC of note, most more than once, (haven't been to French Lick) and find WS to be an excellent test, and well worthwhile---it's exciting, intimidating, visually dazzling and other-worldly in comparison to most courses.
It's completely different than: A) Anything else of Dye's design and
B) the type of courses that most visitors to Kohler will ever see.
I think that 2nd point is important, because in addition to it's major championship imprimatur, WS scores points because it gives domestic, resort-oriented golfers a taste or at least a feel, of what links golf is all about. (No---it's not going to make anyone forget Dornoch or County Down, but it's more authentic than say, the Paris Casino is compared to Paris.)
I might prefer to play Blackwolf Run, HTown, TOC, Golf Club, Teeth, Honors and PDGC on a more regular basis than WS..but I still think it's a tremendous treat, and one of the modern marvels of GC architecture.