Shipping was timely, product quality is good, instructions to install I thought was understandable and it really doesnt take no more than 15ish minutes dependent on skill level and how equipped you are with tools. The differences I noticed after installing the light weight crank pulley is how more responsive it makes the engine and can feel that the engine isnt struggling as much compared to the stock heavy pulley that had a sluggish feel prior to the light weight pulley. Good upgrade for whats it worth specially since the 2.5i in the 6th gen legacy's are severely limited to aftermarket performance compared to the previous generation legacy's and legacy gt's and it looks cleaner in the engine bay.