I'm lucky to have two 4-post lifts in my garage.

Perfect for storage as the suspension doesn't hang on the extended shocks like on a 2-post.
Perfect for wrenching under the car as you have 2 long sturdy "tooltrays" to store tools and parts.

Have never wished for a 2-post in all my years of wrenching on cars.
Also get a little nervous seeing how instable some of these things look.
And with most of my cars being 4500+ lbs fullsizers, I don't want to torture and flex their body-seems with a 2-post all the time.

Besides, with a 2-post lift you gotta get on your knees 4 times positioning the arms...