Review (2/5): Fine while it lasted.
Liked it just fine while it lasted. It could be a little uncomfortable at times, not quite fitting the profile of a fully grown man. And I had some trouble getting the suction cups to stick at first, but once I found the right position for the pillow and the right way to apply pressure to each cup individually, that improved drastically.
And that lasted for about a month. But on trying to pick up the pillow to clean under it, a suction cup ripped out of the backside. Which would have been fine, had it been a cup to the lower and larger portion of the pillow, but because it came from the head the pillow started tilting while I was in the bath. The result was bad posture, back aches, and eventually a trashed pillow.