It felt like sitting on a bag of rocks but YMMV
I had read a lot about the Purple brand of cushions and other products and I debated on which one I wanted to try.  I decided on the Royal and received it last week.  I tried it a couple of times and it felt like I was sitting on a bag of rocks, I was really surprised at how uncomfortable the cushion was no matter what position I tried to sit on it on top of my couch.  Fortunately, Amazon has a great return policy and I was able to return this and get a refund with no problem at all.  I'm sure this cushion works for some people due to all the positive reviews, it just didn't work for me.  I recommend people trying the Purple cushions out as Amazon makes it easy to return the cushion, if neccessary.
Rating: 1 stars