I purchased two dispensers.
We use bagged cereals, and anyone using them knows how messy those can be. I got these to clean up the mess on the counter. I've tried the rubbermaid box route, but those never worked. The boxes left a smell on the cereal, and the cereal remains would get ignored. They seemed to require almost as much attention as the bags themselves.
This, I pour the cereal in at the top, shake the container a bit to get the dust to settle, slightly turn the handle and the dust drains out. No messy half-empty bags anymore, no dust crumbs either, all the cereal gets eaten and nothing wasted.
They also fit on my counter underneath the top cupboards perfectly.
Cons:
The turning paddles were too close together for the larger size cereals, such as captain crunch or fruit loops knock offs, and would crush the cereal. I trimmed off half the paddles in one set (now have 3 blades instead of six) for the larger sized cereals.
One large cereal bag fills both sides of one dispenser. I have teen boys, we go through a lot of cereal. It would have been nice to have something larger, but larger would have cost $500 and I don't have the space anyway. If you go through a lot of cereal, it may not be your best option.
Overall, these are a great alternative if the plastic cereal boxes aren't working for you. They fit in my space perfect, and keep the counter tidy. I would buy again, and I'm glad I got two dispensers. If I started with one, I would have bought a second one.