I have one of the large tall Origami shelves and purchased two smaller, narrower versions for elderly parents to use as a "shuttle" - to help them get things from room to room these days when they don't wallk with much confidence. I purchased the smaller shelves from HSN. You can often find the same items that HSN offers on Amazon at equivalent prices with free shipping. The shelves are sturdy and easy to assemble.
In my experience, it doesn't make much sense to purchase the shelves unless you also purchase the little plastic shelf covers with magnetic tabs that hold them in place. I suppose you could also fashion some yourself very easily after a visit to the craft store.
I suppose the shelves would be OK for storing only boxed items without the shelf covers, but that is not how our family uses them.
I also don't see how they would be much use without the wheels that make them easy to move around.