It is very good

Excellent quick inflator, did not overheat & works great. Used it on 3 vehicles & a 4 tire boat trailer prior to loading the boat. Time will tell if the product material holds up. Very happy, so far, with the purchase.

The compressor itself works very well.
However the extension hose does not seal well to the hose coming from the compressor.
Mysolution buy a extension cord for your cigarette lighter this solves the problem entirely power cord should have been 3 ft longer.

Two things you need to know upfront- this thing draws alot of current. Do NOT attempt to run it off your vehicles built in PowerPoint or off the battery with the engine off. You must use the included clamp adapter to draw power from a more robust 12v source.

Most modern vehicles hide the battery god knows where but as long as you can find the stud for jumpstarting the vehicle you can clip the adapter on there. Leave your engine idling and this thing will work great. I have used mine mostly in my RV and I have the adapter clamped onto the +/- distribution block where the batteries, solar panels, etc are all terminated together. Most people will probably run this off a passenger vehicle, it's important to idle the engine while this compressor is running because it will kill your car's battery within a few minutes if you try to run it with the engine off.

I've gone through two different cheapO inflators in the last couple years. I've found that my folly is that I run them for too long and they heat up. One wore the wrist pin down and the piston started hitting the head. The other simply blew one of the reed valves off. Now that I learned my lesson and know the limits of what can be expected from a small cheap compressor like this, I know to set a timer in my phone, and also try to keep the unit out of the sunlight while using it. This is very important. If it's uncomfortably hot to the touch, TURN IT OFF and wait for it to cool down.

This thing will inflate a standard car tire to 40psi within a couple minutes depending on how much air is in it to begin with. It got one of my E rated RV tires from 17psi to 50psi in about 8 minutes. Unfortunately by that time it had gotten hot, I had to shut it off and let it cool. Ran it another 5 min or so and it got the tire up to 60.

I have a seven gallon air tank, and it can fill it to about 85-90 psi before it gets hot.

I believe this compressor can eventually meet its 120psi rating but realistically those last 30-40 psi will take a LONG time, and you'll have to watch the heat along the way if you really need that much pressure.

This one doesn't seem to get too hot in the upper manifold area but the center section where the electric motor is does heat up. Also the hose fittings seem to get hot.

This pump is compact and easy to store in your vehicle. I bought it for roadside assistance mostly. The rubber feet keep the pump in place while running. I did not like the gauge as it is not that accurate but it is for emergency use anyway. It will pump up a truck tire in a few minutes. What i did not like was when i screwed the two hoses together i could not unscrew them?? So now it is a little harder to put back in the storage bag. It works.