There is nothing wrong with this little twin cylinder supercharger/compressor. Its best attributes are its incredible speed and smoothness. Their tires can be completely flat and ridden up to 35 pounds. in about two minutes thanks to the double cylinders. It's much quieter than the one it replaced, doesn't vibrate or move across the floor. The quick connect allows you to connect the air hose to the valve stem with one quick squeeze and a forward snapβno more trying to screw it in. There are other things you might like, such as the built-in LED lighting. Read the details in the description. It fits neatly into a zippered bag small enough to fit in a glove box. It has features that most new compressors have: preset function, easy to read, accurate backlit LCD display, multiple tips for different inflatables, etc. It comes with over 10ft of coiled air hose extension if a power cord of the same length present is to be short. to get to the bus, although you would have to drive a limousine to do so. I could easily reach all 4 tires on my Chevy Volt from the outlet in the upper dash compartment. The power cord is thicker than the thin cords that come with most inflators; like a lamp cord and should last well for a long time. The one that came with the Volt used a thin single-strand cable that twisted into a line and then pulled (with difficulty) into a cutout on the bottom of the unit. You can do this operation as many times as the tension on the cord takes its toll and breaks inside, so I replaced it with this one. Verdict: If this thing doesn't stop early, I can't say enough good things. Before I forget, this thing costs way less than other inflators with similar specs. If you've ever had to drive to a gas station to deflate a flat tire, this is what you need. This thing inflates faster and gives you accurate pressure readings (verified by comparing the compressor readings to my car's TPS readings).