With the WHS, it’s not just closely aligned, it’s everybody on the same system which (to me) is a massive plus.
I’d definitely check out this link for a few basic intro videos: https://www.whs.com/#learnmore
For those curious about the PCC (playing condition calculation), one thing to know is that the system doesn’t know the weather or anything like that and say “oh it was raining, so that’s one extra shot on the rating”. Instead, it looks at all scores posted for that day in comparison to the expected scores. If almost everyone is scoring better or worse than the expected results, then the system know SOMETHING is up and makes the adjustment. This could be weather related, course conditions, or something as simple as the tees being placed up making the course easier. A course I play often has an almost constant -1 PCC (playing one stroke easier than the rating) because the back tees are almost never all the way back.
IMO, pretty much everything about the WHS is a positive change. I especially love the net double bogey rule (and personally think everyone playing a recreational round should just pick up when you hit net double bogey, will really help pace of play).