Perhaps no one feels qualified to review turnouts. There hasn't been much if anything said on the Yahoo boards (S-Scale has moved to groups.io, S-Trains is in process of moving,) since they've become available, either.
I personally have no need for any new track right now and even if I did, I'd have to shim my code 100 track to use the Fox Valley turnouts. I may pick up a pair and some flex eventually to play with, but it's not high on my priority list.
Rusty