Just ACC here. At one point I added PP due to peer pressure, but then took it off. The requirements for speed and agility are more than met by the standard car. I'm after refinement and comfort, not something to drive like a track car. People say it's worth it because it's a different model classification so has higher residual...yeah, because you paid more on the first place! Plus, it's considered different for insurance purposes too, although I can't say what difference it really makes to a premium as I've never checked!