The sound quality is well balanced with smooth bass and treble without overdoing the bass. One of the straps broke within the first 3 days. I went with a size 8 and they fit! I understand that such jackets are supposed to be loose, but definitely not so much. Says this was a size us 14 but no more like a size 13. Fits comfortably, I wear it at work just to help get a little more burn out of my day. Ill let you decide. It is easy to assemble, it is very strong after being fixed to the wall, does not shake, dont worry about the child climbing, you can sit down and change shoes. Very disappointed in the purchase . The rest of the shoe is made of mesh, so theyre fairly breathable.