I like Asus motherboards and until they give me any major issues I will keep using them.
To me the WS is their top end board, has all the features I want for running 3+ cards and an M.2 without running out of lanes, doesn't come with all the unnecessary extras that I don't need like OC Panel, Wifi, whatever other gimmicky bits the other boards have but still has all the useful software that they come with plus it isn't red and black or black and white!
The only thing is I think there could be some issues with the WS right now as it seems to be delayed, I guess Asus worked more on getting the more mainstream boards ready first which is fair enough.