Seeking wisdom from those who have installed a lift

That being said, i have a 4 post 9,000lb hoist. Going on 9 or 10 years now. There is nothing i cant do on that hoist where a 2 post is better. Not bolted down,and a wheel kit. As far as the gantry goes, there is no advantage to have one above a hoist unless its x/y. Shop crane is easier to work with. I do this work for a living and really cant stand when a simple job becomes a pain in the *** due to limitations. I.E. gantry isnt in right place. I have a portable gantry, very handy.