My terminally ill father-in-law needed back relief from sitting in the same position all day. We purchased a shiatsu seat massager, but being in such a fragile state the massage balls were way to hard & painful for him and aggravated is back even more. We returned that seat and purchased this vibrating massaging seat and it is PERFECT! Our goal is to keep him comfortable and this product is absolutely doing just that. The Heat option is also a plus for his situation Thank you! ..More