I bought one of these via woot a few years ago, it has held up well to use in an unheated garage in a high-salt area.
It’s not nearly as low-profile as my dog bone style creeper, so I mostly use it in seat mode, e.g. when cleaning and filling tires, etc.
Sorry Richard Rawlings, I am purchasing nothing with the “Ass Monkey” logo due to the fact that I really can’t stand you. I certainly would not want to do anything that would further line your pockets.