Oh, it's real. Check out the Product Site.
I can't imagine that this is all that "ergonomic"... my buttcheeks aren't 4 inches apart. Perhaps that's one of those "disadvantages" of being a big person that dude is talking about? Anyway, you're going to have wedge that thing in there.
Also... what disability do you imagine that classy WASP having that requires her to have someone else wipe her ass?