From Graham D. "This compressor is light years ahead of other cheap compressors I've owned over the years. It is mostly metal, is very rugged and has enough weight such that it does not move at all when it is on and working. My other cheap plastic units would do a river dance on the ground when they were working!There is lots of length in the battery connection cable (about 7ft 6in) and the hose (12ft) so reaching the rear tire on the opposite side of the car that the battery is on is no problem. Being able to connect it directly to the battery with the sturdy clamps is a godsend as I can't count how many cigarette lighter fuses I've had to replace over the years. It is very fast in operation and quiet too, you have to be careful to pay attention otherwise you could easily overfill the tire it works so fast. It also has a built in 20 amp replaceable fuse (ATO size) for protection. The hose has a metal connector that screws onto the tire valve, much sturdier and easier to use than the clamp style of connection.Based on the overall quality and operation of this unit I think that it's likely this may be the last air compressor I'll ever have to buy. Who knows, maybe it will become a family heirloom handed down from generation to generation :)Yes, it's not cheap but like most things [in life] you get what you pay for. Very highly recommended."