I have had this pillow for probably a decade or more, and it's still going strong. My job takes me to different offices every day, and I'm subjected to a variety of chairs, many of them ergonomically a nightmare. This pillow has been a true lifesaver, adjusting to whatever I need for the depth of the chair.
I purchased this pillow as well as the $19 "Adjust-Air Portable Lumbar Support by Mediflow." Both pillows are similar, but overall I think this one provides better lumbar support. However, if you're concerned about having the external hose/bulb arrangement, you might be happier with the $19 version.I like this pillow best for the car. Once it's in place, having the external bulb makes it very easy to inflate/deflate even while driving. A downside is that it can catch on things if you're constantly movin..
My car did not come with built in lumbar support. So I ordered this item, opened the back of my driver's seat, inserted this lumbar support and left the tube and bulb hanging out toward's the right side of my driver seat. It works great! I now have adjustable lumbar support for my aching back. Nice product! You will need to consult an owner's manual to figure out how to get into your seat back. And please be careful...as modern cars like mine have wires in the seat for air bags, seat belts and seat wa..