I know a few people that have these, and the foot lever is pretty neat for lifting, but the biggest downfall is that the release is a fairly small diameter knob at the end of the T handle, and it apparently can be a bit tricky to control (aka dropping really fast to start).
That may not be true of all of them, but just a heads up.
That’s the one I have
The foot pump is only useful to quickly get the jack to the lifting point on the car, which is ironic because usually we use these on lowered cars, soooo.
It’s useless for actually lifting any weight (I don’t think anyone was under the assumption you could lift your car via the foot portion anyhow)
The knob at the top can be a real SOB if you hulk mode tighten it. I’ve found that just barely snugging it works well & doesn’t act like a 40year old jar of pickles when you go to loosen it