The quality is outstanding, but the side-effects are not the best. The poly bushing and rigid mounts enhance engine vibrations and transfer them to the cabin. So much so, that you dash and other interior pieces will buzz or rattle. If you can live with that, go for it. Some people just don't like that kind of stuff. A friend of mine had the HASport mounts and took them out of his car after a week. He went back to new OEM mounts instead and is quite happy.