I have one of the US originals that this is a copy of. Sold a second one.
They work as expected, suitable for jacking under the axle of a tractor that is much higher than a car axle, for example. Or stretching fence wire.
Long ago I used to use mine to lift the back of my Willys Wagon by its trailer hitch if I were high-centered in deep ruts, then give the car a shove and let it fall several inches to the side onto undisturbed ground.
However ...
The American ones can be deadly.
1) They don't have any resistance to tipping to the side, front, back. Don't attempt to use it before you have a good plan to stabilize the load as it goes up.
2) My experience was the mechanism can do unexpected things including dropping the load suddenly as you try to jack it back down. The pins are just pushed in by springs, not by any fail-save engineering. So if there is some rust or obstacle in one of the holes the pin won't go in securely, and as you raise the handle for the next bite, down goes the load. I cleaned up one and got it a little more reliable, sold the other one as-is with a strong warning. New, or the HF clone, will be better in this respect but they still have the design weakness that there's nothing to guarantee that the pins get fully engaged on each stroke.
3) There are some modes where the handle can fly up unexpectedly - at risk of knocking your teeth out.
Last time I used mine was to tip a rotary mower up to pressure wash it. Jacking it back down, it missed a tooth and fell all the way. I was at a cautious distance, no harm done.
These are the appropriate tool for some tasks but with much caution that it is doing what you think it is doing.
I don't think where you buy it makes much difference.
