We got one for our Death Valley trip. It was a recommended tool for that far away from civilization but turned out we didn't need it. Since we boondock much of the time, I still like having the small size compressor and carry it with for longer trips. It fits well even in our small C. I have an impact wrench, air blower, and chuck with gauge, all from Harbor Freight, but the compressor is this one.
Dewalt 1 gallon compressorI returned the Porter Cable same sized air compressor because I could not get it to hold pressure. I guess it was common in that model. But here it is in the under couch compartment before I returned it. The replacement sits in the same area and I store the accessories in a small plastic toolbox.
The Dewalt was about $20 more expensive.
We use it in the stick house too when we want something portable. I've had it about 2 years. I notice that sometimes it is difficult to close the release valve on the bottom and get it to pressurize after sitting for some time. I have to fiddle with it but so far it has worked every time eventually.