This is my 2nd one
My first one lasted over 15 years, but I really needed a new one - barely looked at the other models - this one is so perfect for my back... I use it in my car everyday.  On several occasions my husband will throw it in the back seat and I may not notice until I've been driving for 10-15 minutes.  If I don't stop and put it in the driver's seat my back will suffer after 45-1 hour driving.
Rating: 5 stars