Excellent No-Pressure Cushion
I have been using this cushion for three weeks now.  I really like it over the other sacro pillows.  I would have rated it 5 stars if it wasn't so heavy to take with you everywhere.  It's wonderful, if you plan on keeping it at your desk or on one chair all the time!  However, for using as a portable cushion, it is simply too large and heavy.  I looked at their portable seat cushion.  However, the thickness of the portable purple is half as thick.  I do use this cushion on a daily basis and love it!  Just wish it was more portable.  Highly recommend over the other sacro cushions.
Rating: 4 stars