That was the only available product on the shelf so I bought it. It was reasonably priced at $4.99, plus I had a coupon. Unfortunately, it's not very good. First, the air pressure was not strong enough, so it wasn't doing a good cleaning job. Second, I bought it to clean two laptops, and it actually ran out of air when I was in the middle of cleaning the second one. I'd bought a cleaning duster from Best Buy before, though I don't remember the brand, and it lasted for multiple uses. I wouldn't purchase this product again.