I either use a harbor freight lift cart, or just drag the game (usually just when there's carpet).

The dolly wheels don't work well on uneven surfaces and the levelers tend to slip out even on flat surfaces (even with padding for grip).

I had the jabtec skates, but never really used them.

I've used wico cart, and it's pretty sturdy and maneuverable, but might give you trouble when there's not enough of a gap between games (you'll end up bumping backboxes). But, I prefer to have control over how low/high I can raise a game. This is where the lift cart is more helpful; for tipping the game to move it or put on legs, or removing/inserting the playfield into the cabinet.