I have a jack that looks exactly like the grey one (first pic, left jack) and have had no problems with it. It is low, light, quick and lifts my car very well.
The pic under it looks like the same jack, looking at the rear castor mounts and bolts/nuts on the sides, even the screw to remove the handle. The only thing that looks different is the handles, and even that is hard to tell.
Oh, and I payed just over $100 for it, prolly 99.99 plus taxes.
Theo