Good... no, Great for you
I just love the flexibility. I'm fawning over a garage makeover, preferably prior to seeing this one collapse upon the current occupant.
This set-ups just look like a great way to get access, without breaking the bank, nor preventing me from building extra storage above (i.e. false spare BR).
As a matter of course, in your seingle car set-up, I would rarely see the need to remove and wheel away. But mine is a 1.6 width detached. That second / middle post will be right in the way of lots of stuff if'in I ever were to git one. I like the idea of being able to move it aside. But... don;t like the idea of me messing with it too much either.
Very nice...