[black69]

I am pretty sure they don't make a 2 post lift, but they do offer a built in jack option that allows you to raise the car like a 2 post jack in a sense to service the car's suspension better, etc.
It reuses the units existing pump. If you had one of these front and back (they slide between the ramps), it would be really stable and clear to work under the whole car.

a 2 post is more permanent, where as this lift does not need to be bolted down. some 4 posts do.

For me personally, a 4 post is safer if you leave the car elevated for a long time while you are working on it (and you have kids that make it into the garage). I never finish anything fast.