I’ve been using this cushion daily in my car for almost two years. Many car seats are designed so that your hips/butt sink back & down into the seat, and your knees are higher than your hips. Very uncomfortable and causes hip/butt stiffness and pain. Since this cushion is slanted downward, it corrects that problem and now I’m sitting on a flat surface. I like the firmness of this cushion; too soft and I would be sinking back down into my seat again. I pair this with a lumbar cushion behind my back. Now I feel extremely uncomfortable if I sit in any car without my added gear. After two years, the little handle where you carry the cushion has ripped off and the gray layer has faded/been rubbed away, showing a brown layer underneath. Doesn’t look so pretty any more but still works great. ..More