I was expecting to be able to use it regularly as an air compressor, in addition to being able to do road rescues in slime mode. The pump is powerful and fast, the pressure readings are useful, and the controls are easy. It is very convenient to store all the cables and hoses. But the connector at the end of the air tube is a soft plastic that you screw onto a metal tire valve stem. It lets air through when you screw it on and when you take it off, so it's difficult to remove without losing some heavily inflated psi. But the real problem is that I've found that the threaded connection gets eaten away by the metal valve stems if I keep using them. The hose connects to the slime container, breaks down when you have his slime, and is replaced as part of a new slime container. So they haven't built that thing in ages. Only use this kit in exceptional cases (be it air or slime) and I think you will be very satisfied. Do not use it for normal tire pressure adjustment.