The best part about this jack is NOT having to pump the handle or twisting the handle to lower the jack. I lifted the left side of a Ford Explorer (~4,000 lbs) easily with about 60 PSI. Unlike a hydraulic jack, the lift was smooth and quick. Having a tow handle makes positioning the jack a snap. The air line connection is the same as all my air tools. The bronze filter fitting on the exhaust side is a thoughtful idea so the user does not get an air blast when lowering the jack. Being able to slowly control the lowering is a major improvement over my hydraulic floor jacks.I always check torque on the fasteners before using the device. A couple of the 16 screws were less than finger tight. I torqued all of them to 150 inch pounds, 4 and 5 mm Allens. I also cut a 4X4 block to sit over the rubber cap for some extra height. Probably won't use it for my Ford Edge.Overall, very pleased with this device.