Do the math and you will find that Staples brand air duster is the better deal. Quality has always been consistent and reliable. One suggestion though whatever it is you wish to dust before using this product on it for the first time ALWAYS double check to see that use of pressurized air is appropriate or suggested. Better safe than sorry. That being said I've never had any trouble with Staples Electronics Air Dusters my go-to duster and I don't see that ever changing. Highly recommended!
I have three issues with this product: 1. It's very expensive for 2 cans of compressed air. 2. The two-pack is overkill since the second can is half-empty from leakage by the time I finish the first can. 3. The pressure falls off too quickly making it less than useful.
Seems to work just fine. Break-off tabs on any of these products from Office Depot to this one can be a challenge. Blow the salt and whatever else out of your keyboard - nothing else works as well. Good price.