Great product!! I recently had back surgery and couldn't sit in a chair for long time to work. I bought this to work on my bed and works great!!! I can use it on top of a table to give appropriate height to work standing up. Very versatile. The only thing is I need my husband's help to change the shape to use it on different surface and hopefully that's because if Mt surgery not the ease of the product.

Pros: Great value and versatility
Cons: Not that easy to make different settings.