High-Pressure PCP Air Compressor 4500PSI/30MPA - Oil-Free & Water-Free with Auto Shutoff, Built-in Power Adapter (110V AC/12V DC) - Perfect for Paintball Tanks, Air Guns & Scuba Diving Gear

First, I was surprised at the size.Even though I'd read it was small, and I measure things all day, I still had preconceived ideas based on the larger models I have seen. It really is much smaller than I anticipated, which is a big plus and makes the 12volt set up actually very convenient for remote location filling. For now, i have only tested it at home on AC power.It came very well packaged, and with good clear instructions, as well as a one page quick start.Included are both AC and 12Vdc power cords, parts, foster cable and filter holder, spare filters, including one preinstalled inline.Really there was no set up, just plug it in and go.I've used this only twice now, but it filled both my Benjamin Kratos and Dianna/Artemis Bandit to where I set the automatic cut off, which in this case was just shy of 3000psi for each. (approx 2,800psi, or 18.5ish BAR)- The auto cut off was easy to set, and worked perfectly both times.- Gauge appears to be accurate. (I have nothing good to compare it to, just the two on the airguns I charged. All three gauges agreed with each other.)- Temps never got above mid 30's celsius, which is really cool. It's not going to shut down from temp until mid 80's according to the manual.- It's really quiet. I was fearing something much louder. The Fan is loud, for a small fan but that's about it.- It actually has two fans, one in the power supply that stays on the whole time it is plugged in, then the one you turn on.- No leaks, or issues. Foster connections were good.- It took "about" (didn't remember to start a timer) 6 minutes to bring the Kratos (480cc @ 2850psi * rated for 3000 ) up from about 1,200 psi. It seemed longer with anticipation!- Just over two minutes to fill the little Bandit.(compared to my "bicycle pump", this if great!)I don't have a small carbon tank yet, so I could not test up to higher 4000plus psi. Watching it slow down after 2000 on the 480 cc Kratos bottle, I'm not too sure how well it would do with a larger/higher pressure bottle like that. But for filling a gun directly, it seems a very good deal. I paid $379.00 with a coupon when I got mine. Right now they are down another $10.00 This only less than double what I paid for the Benjamin bicycle pump.Obviously I have no idea yet on longevity.I will try to come back in a few months or so with an update. For now you can be sure that if there is no update, that means it is still working fine. If anything goes wrong, you'll here from me the same day. (as will Amazon :) )