I have a Cornwell creeper I've had for 10 years or so. It worked well on the concrete garage floor. I just hate it when it gets stuck on the errant air hose, wrench, loose bolts laying around.
I've recently started using large sheets of cardboard instead of the creeper. Just lay it under the truck, lay down and grab a frame rail and pull myself under. It's just slippery enough for freedom of movement yet you stay in place when trying to pull on a long ratchet. No limit to where you can move yourself around to cause there's no wheels to get stuck on anything. It catches any drips from whatever you're working on which can then be wiped up which eliminates the need for speedi dry and also eliminates drip stains on the driveway. When it gets old and nasty it can be burned in the fire pit and a new one is free, at least for me cause I bring it home from work.