To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
The cushion hugs your back perfectly. I have sciatica and this cushion has helped it improve so much it's almost gone. The pain relief was immediate. I like the memory foam and the spine cushion. I have so much more support and comfort sitting for hours a day now.
This back support sure is nice.......but I've tried 11 different chairs in my office (just trying to give it to someone who can use it!) and it doesn't work with any of them. it's just too thick, it almost pushes me off the chair. Also tried in my car. Same thing. It's just an absolute beast. Missed my return window. Should have sent it back sooner but figured I would find somewhere I could use it. Maybe we'll just throw it on the floor and let the cats tear it up. Bummer, if only it wasn't so thick, it would be great.
I think this is doing an okay job, but if you hare shorter/ have a shorter back it may be doing more damage than helping, as it may not be aligning with your back the way it should. I find that on the first day my back feels fine, and then a few days in it hurts pretty bad. Just make sure you have it in the correct place for your back!
The zipper is defective and you will never be able to zip the cloth cover back onto the cushion if you unzip it. It's a shame because the cushion itself is perfectly adequate for back support. 0 stars.