Adding my experience here too: I miserably struggled with those CRAPPY Turanzas on my Turbo 3 for almost 4 years, and I finally had them swapped out for Pirelli AS+3's. As crappy as Turanzas were throughout this time (leading to multiple replacements), I'm only now realizing in comparison how utterly awful they really are!
Right off the bat, steering is so much more nimble and smooth, I probably put half as much effort into steering now. Traction is worlds better, and the car runs a lot gentler, too. Don't get me wrong, 3T is rough by nature, but now it's gliding over the same bumps and humps compared to the death shocks from Turanzas (which by the way, got exponentially worse over time). There's a lot less understeering with Pirelli's now, and interestingly, MPG shows signs of improvement as well. So, count me in love!