I have a four post and for me, there is no other to use. They all have pros and cons. With the 4 post when doing any wheel work
you have a built in table right where you are working. You can just lay the parts in succession of removal etc. Then you have a handy place fror your tools.
A regular two post is a pain as Steve said, you can't open the doors. Doing under dash work with a 2 post is impossible but with the asymetrical or 4 post, no problem. It sure beats lying upside down in the seat.
Another advantage of the 4 post is if set up properly, you can do alignment work on it easily as all wheels are compressed. To remove wheels either use a post, scissors or aluminum jack. I've
also made an arm which bolts on to hang motors from to load into a pickup and do this with a car on the lift. And yes, you can raise only the front wheels if need be...great to get all the oil to the rear of the oilpan.
Hope not to put a bug in, just my two cents. And by the way, you can move it easily if you move!

Tobias MB
3 MBs