I read a lot of reviews and always worry that the positive reviews were paid for and not genuine, but I can promise you I was not paid, I bought this for my father who was struggling to get up from his recliner chair. It is expensive but I figured it was less expensive than one of those lift chairs, and as a bonus it is portable, he could put it on any chair or even take it with him if need be.The other thing I worried about was comfort, because even it worked to lift him, it requires you to sit on it for extended periods of time for it to lift you when you need it and my dad is fussy! It is not only comfortable but really works. It inflates in 4 levels and he doesn't even need them all, usually only uses the first 2 levels and it makes is MUCH easier to stand up. Then leaving it raised, makes sitting easier too.The service it provides really is priceless, giving independence back, and making getting up and down safer. I am so grateful to the inventors of this product. THANK YOU!I would love to see a foundation started to donate these to people who can't afford them. I am happy to give this product a 5 start rating.