This is overall a sufficiently nice duster for most needs around the desk. It's done a solid job on the PC's and keyboard I've cleaned out as well as on the general desk surface. My only complaint really is that it is rather loud for how much air it moves. While it's not leaf blower amplitude, it is certainly too loud for a workplace environment to not be disruptive and far from a significantly strong force. I personally don't need something ultra quiet, though.
Like a few other people have said, the battery is utter trash, and you apparently can't run it off direct power. I used it a couple times, didn't for a few months, and now it just doesn't charge or work at all. Dead within a year.