I had plantar fasciitis for approximately 18 months and since it started until now, I am very careful with the shoes I buy. This one it is actually firm to touch by hand, but with great absorption on the heel and a good arch feed back. The input port is located on the edge and is easy to find, plus it has a kind of collar which makes it easy to plug into without taking them off. Keeps my speakers in place so I can listen to music on my rides. One of the other drivers saw how I was using it and got exactly the same one for his truck. Overall, this product works, but is not worth the money. I got a 3 year warranty on it, but they will not honor it. Not sure these are real Uggs! We were able to not use all of the parts so that we could make it shorter. Its far far apart.