Pros Designers and audio editors apparently thought this through. There are some nice logical features that are a step above Audition 3. You'll be almost comfortable with this if you like Audition 3. And you'll really like being able to edit on the fly.
Cons Slow. Apparently this new system requires a lot of processing. Audition 3 is not slow for me, but CS6 is a significant slow down.
Summary Adobe Audition CS6 is a HUGE step in the right direction. Don't compare it to CS5. That was...well...I'm not sure what that was, but CS5 should have been an embarrassment for Adobe. But CS6 is not up to the speed and smoothness that I expect and demand when I'm editing (on a PC). I'll be trying it on a Mac over the next couple of weeks. However, I'm pretty sure if they can get those little glitches fixed, this is going to be one major contender.