EPAuto 12V Portable Air Compressor Pump

Update on 3/8/2017 - Still working like a charm! Inflates quickly, quietly, and accurately. I highly recommend - It's small, powerful, and I'm confident that it will get me out of a jam when I need a small, portable compressor. It's already saved me a lot of grief a couple of times, when I find a tire almost on its rim and I need to get air in in it to make the vehicle roadworthy. No regrets on this purchase at all! Update on 2/7/2017 - Received a replacement pump, and it works like a champ! VERY Pleased. As a matter of fact, I was so pleased, I ordered another so I could have one in each of the two cars. It inflates quickly and quietly. It's compact, and seems to be rather durable. Original post: I bought this "EPAuto 12V 120W Portable Air Compressor Pump, Digital Tire Inflator by 100 PS" from Amazon as an Amazon Prime customer yesterday, and it was delivered today. Yay! I opened the box, and was rather excited to find it had some weight to it (not a lot), It but didn't seem flimsy or cheap in any way. I thought that if I were to drop it (or even toss it, and the recipient of the toss missed it, it would survive being dropped). It's a rather solid feeling unit, and seemed to be built much better and more durable than other pumps I've owned. Now, the test - I took it outside, plugged it in to the cigarette lighter socket of the car (making sure the power switch was set to the off position first), started the engine of the car, and saw that the display on the pump illuminated. I screwed the fitting for the fill hose onto the tire valve, and it told me the tire pressure was at 14.5 psi. I thought (and hoped) this compressor would remedy that issue, until I adjusted the desired pressure with the bottons to 35psi, turned on the power switch to on, and NOTHING happened. I turned the unit off, unplugged the unit (and the display on the unit went black) from the power source (cigarette lighter plug), checked the power cord in-line fuse, and the fuse looked fine. I plugged the unit back into the power source (cigarette lighter plug), the display lit back up, Yay! Powered up the pump again (turned the power switch back on),and NOTHING happened (again). No click, no noise at all. It was like the power switch was an ornament and not a functional piece of the unit. Right now, as I write this, it's back in it's in box with its accessories and packing materials being returned to Amazon, scheduled to be picked up tomorrow. I will order another one of these units to give this product another fair chance (as I would any restaurant or other merchant (Hey, everyone is entitled to an "off-day"), but so far, I'm very disappointed with the fact that this unit is a "#1 Best Seller" in the Amazon rating system, yet the quality control system for product is so <substitute the expletive of your choice here>. Did they test this item, spot check some, or what?!?!? OR, maybe just pushed ot out the door, resting on its laurels? Other recent reviews of this "EPAuto 12V 120W Portable Air Compressor Pump, Digital Tire Inflator by 100 PS" show similar experiences to mine. In the future, I'll pay more close attention to recent dates of the reviews. I will update this review when I receive the replacement unit I'm ordereing, and talk more about it when the time is right. I'd like to see t work, and last a while... Thank you for your time for reading this review, and I apologize if you find this review a bit "long-winded" (it IS for a compressor, after all, and I'm letting my compression out... :-) . Sincerely, Jim