Review (2/5): Not as good as I originally thought.
UPDATE: If you take long baths, you are likely to find this uncomfortable, and if you have sensitive skin, likely unusable. Also, it has a red ... Algae (???) growth that I have tried to wash out twice. If this last time doesn't work (currently in the washer). I may just pour in some bleach.
Because of spinal injuries and such, I often take long baths to soak in. I have never used a cushion before, but this one works very well for those long soaks.