I'm sorry, but $68? (on sale for less at overstock, to be fair). For a toilet lid?
It's basically a fussier version of this:
http://www.amazon.com/StanSport-271-Sta ... oilet+seat
for a lot more money. And if, heaven forfend, there's a leak or spill in the wag bag and that would be a drag to clean. It seem to be the same idea, just hidden under a bunch of fabric.
I've used the Stansport ones or generic versions. A nice thing is that you can use them outside over a latrine. We've left one over a broken pit toilet in a campground once. And of course they work well with wag bags, which are SO much better than tank type toilets (I mean the portable ones, not the built-ins). We've also used this seat over rocket boxes, which are very handy for storing the wag bags, and the toilet seat usually fits inside. Be overkill for SMB camping, however, but useful on raft trips.