I looked at quite a few creepers before I decided on this one. I was mostly in the market for a low sturdy garage stool for when I'm working on brakes, suspension, and other mid-height tasks. Crawling around on my knees was getting old and constantly getting up and down didn't cut it. The convertible construction covered two birds with one stone. I also researched the casters on them and most were pretty shoddy. These are much higher quality than any others anywhere near this price point. They're NOT the hard black plastic ones that get gravel stuck in them and then gouge up when they bind. They also have good bearings on the spinners and the wheels with very little free-play. The covering also seems thick and durable.
When I found this, the first thing that stood out was the inherent stability of the base when it was in the stool mode. My driveway isn't as smooth as a gym floor and I didn't want to get dumped because I rolled over a pebble or a crack. The extra padding for the head was another selling point. While I don't ever plan to nap on it, the additional cushion naturally puts your head at a good working angle. You can work without the project directly over your eyes without straining your neck.
Like others have mentioned, it is a bit taller than other creepers, but I couldn't comfortably get under and work on most non-trucks if I were on a wafer. Ramps and/or jacks are pretty much essential unless you're way skinny, very limber, or you have a vehicle with good ground clearance.
Potential problem: It isn't always where I left it because my kids like riding it down my slanted driveway. No spills so far. They keep telling me I should try it out. Very tempting but I feel a bit too old.
