Early day at work today, so I only got a few minutes last night to check things out; here's what I'm feeling like I hear, so far:
* more swirl, or something, in a held chord.
* Plexi's back. The Plexi had been one of my fav's for the last year or two, but I had fallen out of love, in the last couple updates. Not sure if it was me, or the FW upgrades, but it had lost it's luster, for me. Now, I think it will move back into top spot again, from what I heard in the few minutes last night.
* Can you say volume dynamics? WOAH!!! This thing REALLY responds well to guitar volume changes, now. I did just swap out the electronics in the PRS, so that may be a small part of this, but this particular guitar has never been the most dynamic - now it totally responds to volume pot changes on the guitar.
* So far, this sounds like a home-run, on the half dozen main presets I went through quickly last night.