Comfortable squishy cushion
Seat cushion is wonderful; little black sack it comes with is about 1&#34; too small in width and depth, and pretty thin, seems like a after thought.  Cushion is king of grippy, when you sit on  it you can heat the independent cells sticking together.  Inside the box instructions make it clear not to leave it in a hot car.  Well living in Phoenix,their definition of hot car is my definitions for a normal summer afternoon.  Not sure if I'll be able to use it in my car.  Tried using it on hardwood floor and it was surprisingly comfortable.
Rating: 4 stars