It really does work!
I was skeptical because of the negative reviews and the price. After experiencing some pretty harsh tail bone pain at my work-at-home sit-all-day job and a 20% off at Bed, Bath, & Beyond coupon, I decided to try it out. I had been in so much pain that I tried sitting on my contour pillow and that only helped a little. This was like sitting on heaven.  I felt immediate relief in my tailbone. It also encourages you to sit up more. I'm pleasantly surprised and highly recommend this product!
Rating: 5 stars