20" rise; use with creeper. Just drive up the ramp, jack up the back of the lift until the legs drop down and you're set. You do have to have a floor jack but we all have one of those, don't we? Accommodates lowered cars. It looks pretty stable to me and eliminates balance problems.
When in danger, when in doubt.
Run in circles, scream and shout.
You can also use QuickJack. I believe the parent company is Benpack. This is what I use. Available cheaper from COSTCO or Home Depot. Should run around $1100.00. Itís two ramps under your frame and uses hydraulics to lift, two positions.
And the photo there illustrates my point. You aren't going to slide under there on a creeper with an elevated head rest with anything but minimal clearance, especially with a friggin' ball cap on your head. (Not that the ball cap is a requirement.) And if you're doing work on a transmission, clutch, or exhaust system, getting the parts in and out of there would be equally difficult. I suppose it can be done.
You'd have a lot more working room and versatility using a floor jack and jack stands. And they don't require the storage space that one of those lifts require.
I never understood how you could get under the car and do any real work with one of those.
I'm with Rick on this one. It may be the thing for some, but it just gets in the way much more than a traditional lift: you still wind up rolling or crawling around on your back, still wind up getting up and down to fetch that wrench you forgot to get, and for underbody, trans and suspension work it complicates more than it helps. Had one - sold it.