Just bought one of these from Home Depot. I already own one of Ryobi's 18 volt ONE+ drill/drivers with two batteries, so it was a bit of a no-brainer. As it turned out, when I went to the service desk at Home Despot, they didn't have it handy, so they gave me $10 off because we had to wait for ages whilst they located one. So, it cost me $15 plus tax.
Now, I already own a Viair 12V DC inflator, which has been great, except that unraveling the 12 V cable and 'raveling' it back up is a bit of a pain.
So, we'll see how this one does. I've already noticed that it has only has a 5 minute duty cycle (before you have to rest it for 5 minutes), so it'll be no good for airing up serious off-road tires. But the first test - airing up a bicycle tire from 20 psi to 90 psi, was quick and easy.
By the way, this is the latest one with a digital pressure gauge, not the analog one. Model # P737D.