Helps with sciatica
I don't know how anyone can say this is &#34;hard,&#34; because it's foam. It's softer than your chair!  It's not a miracle product--it is designed to give you the right angle when sitting.  This will indeed lead to better posture and therefore reduced back pain--but if your back pain is due to something more than poor posture, it's not going to fix a slipped disk or something like that!  Expecting anything like this to do so is a little unreasonable.  This is an inexpensive but effective product for what it is designed to do:  correct your sitting angle.  It helped my sciatic nerve/hamstring pain when I used it while driving.<br />This product was recommended by my most excellent and highly respected physical therapist for this purpose.  If your pain is aggravated while driving, this product may help.  It's not going to fix the cause, though!<br />My only reason for 4 stars was that I wish it did have a more durable cover.  But for the price, it's not a deal breaker.
Rating: 4 stars