I ordered the rotary cushion for my mother, who has mobility problems. I thought it might help her to get in and out of the car when I take her out, and I was not disappointed. She tells me that the swivel action helps considerably. I was pleased to find that the cushion stays in place without damaging the car seat cover, and that its flexibility makes it suitable for 'bucket' seats. When it arrived we thought it might be too big for the seat, but how wrong we were. All in all, very pleased with the rotary cushion.