I used to have a Porter Cable 5 gallon pancake compressor, but now I have a
Senco 1 gallon compressor. It takes up less space and is MUCH quieter. The down side is it takes a lot longer to air up a tire if there is a significant loss of pressure. I very seldom need to add air while out on the road. I always check the tires at home before I leave and it usually takes a couple months to drop 1 PSI according to the TPMS.