I've played it 3 times as it is relatively close to Chicago.
The first two times were when the green fees were FAR lower.
Most of my golfing buddies make trips to Erin Hills, Lawsonia and now Sand Valley.
The only times I hear of friends going to play WS is when it's some sort of corporate outing or company "retreat".
Yes, it's a fun course and visually...uh...stimulating. But, at close to $500 (all-in with caddy), I'll leave it to the General Motors Midwest Auto Dealers Association annual meeting...;-)
My wife and I were in Kohler in the summer of 2016. Played Blackwolf Run. (For those who may not know, there are two courses at Blackwolf Run and two at Whistling Straights - 10 miles apart - all Pete Dye and all owned by same group.) Always a fun time. But, in the middle of July on a weekend, the parking lot was 1/3 full and both courses there were deserted in the PM. No one on the range and we saw only one other group teeing off.
The rooms at the American Club are nice, but it ends there. Feels way too corporate. It was 90 degrees F when we were there and I inquired about the whereabouts of the pool. To my astonishment, I was told that guests at the AC have "rights" to use the indoor pool at the YMCA 1/2 mile away and a shuttle could take us there.
Unless I'm staying at River Bend, I can't see a return trip there. Too many other great options. Plus, it's a better deal with better golf for us to fly to Scotland and play for a few days.