Memory Foam Bamboo Orthopedic Seat Cushion

Changing my evaluation after using it for a couple of months. Initially, after a short break-in period, I was liking it, but that feeling has waned over a longer period of time, Ive lowered my rating to 3 stars. It's OK, BUT...! It's been some time since I purchased this cushion now and I find that it does NOT work well for my intended purpose - a driving cushion. It's NOT that it does NOT cushion well - indeed it does - but it cushions TOO WELL when used as a driving cushion.Automobile seats tend to tilt back at a slight angle, thereby elevating the front of the the auto's seat. This often makes the front of the car seat somewhat higher - in it's front - higher, actually than at the back of the seat, which is not, therefore, level with the front of the auto seat. Some auto seating even has a build-up of more under-the-thigh cushioning built into the front of their seats, (i.e., to support one thighs), making the front on their seats even more higher than their back. This CYLEN cushion is NOT beveled, (i.e., angled), to be lower in the FRONT of it than in it's BACK. Therefore, I have found the FRONT of this cushion then becomes TOO HIGH under one's thighs when driving, as it then puts undo pressure up onto one's thighs, (i.e., when thighs/legs are straight ahead). This is a condition that does NOT exist when one's feet/shoes are not flat with the auto's floor pan. But when driving - with one's leg(s) stretched forward, then this condition becomes very uncomfortable under one's thighs. I had to stop using it in my vehicle for that reason. (i.e., I bought it for a tailbone problem). I now use it only on/with a flat-seated, wooden office computer chair. There it works fine because the front of this chair seat is NOT higher than its back, thus it puts NO undue pressure pushing up from under one's thigh(s).