Plenty of ladies in my guild have used the purple cushion and none of them liked it. I use a revolving padded seat cushion designed for the car. I love it, like having a swivel chair. Wonderful at retreats and classes. Here is a link to a similar one. Do a search and be sure to read the reviews. $15-40. (Get one with a removable washable cover.)
http://www.activeforever.com/p-161-c...t-cushion.aspx