I have a 2.5 ton HF jack that I purchased in 2009, nine years later still works fine. I also have a light duty jack like the one being discussed, it is used to stabilize a differential, tranny or engine from the bottom, when doing installs. Basically a third hand, I like the lightness of it for those tasks. Bottom line is, jacks are like all other tools, there is a variety of strengths and weights available. A portion of the skill in working on a vehicle is being able to select the correct tool for the job.