The product does what it says it will – relieves lower back discomfort by a great percentage. My only complaint is that it doesn’t stay in place well as every time you enter the vehicle, you have to reposition it upward but as you drive, it becomes relocated lower and you start feeling some pain because it isn’t positioned where it should be, just resting on the seat cushion. If I exit the vehicle, I find it wedged down between the seat back and seat cushion. Unfortunately, I haven’t yet figured out a way to cinch it in place so it stays. If I install it with its retaining strap above the folding armrests, it is too high and uncomfortable and with the strap under the armrest pivot points, it can migrate downward. Otherwise, a good investment and not everyone’s vehicle seats might allow the same thing to happen. ..More