Beware if you have delicate or thinning skin
The cushion is definitely durable, no doubt about that.  The cover tends to shift on it but it's not a huge issue.  It provides support as they say, but if you have delicate, sensitive skin, or any medical condition that causes your skin to be thinner and injury prone, you don't want this cushion.  The waffle pattern gradually chafed the back of my legs until I could no longer sit on it.  I developed sores from the pressure.  For someone without those issues, I'm sure it's fine, but it caused me additional issues.
Rating: 2 stars