Purple Rocks!
I suffer from lower back pain and a hip issue. I have a standing desk that relieves the pain but I can't stand all day. When I sit in my chair about a half hour later the lower back pain and hip pain returns. Aug.3 was my first full day of using the seat cushion and it makes quite a difference. I have been toying with getting their mattress and this experience is making me lean towards that purchase.
Rating: 5 stars