I have these or a different part # on my 08 outback for the past 3-4 years. I did a lot of other suspension at the same time so I can't tell what the real handling difference was. The only problems I have is, I don't think the main stream alignment shops know what to do with them since the nuts are always loose right after the alignment. The nuts are known to loosen up on their own, but I used medium loctite last time which seemed to solve that. I marked the direction of how the nut tightens to help remind if I don't touch them in a while. The rubber is seeming to hold up fine, but I am in a hot climate.