Buying a 4 Post Lift advice

So, does yours have the wheel kit? How is the stability if it is not bolted down?

Yes, it has a wheel kit....big wheels, the weight of the unit picks itself off the ground and onto the wheels like a cantilever....one person easily rolls the behemoth around the barn.

Stability seems a little weird on imperfect concrete when unladen, but with weight on and up off the ground, it puts the weight down on the corners quite well, no anchors used.