I HAVE played with it.
Animations? Whoop de frigging do. My Tab animates the orientation change too. It adds next to nothing to the user experience. Having a half-decent processor adds to the user experience, due to things not shuddering and jerking regardless of the OS.
Changing everything for the sake of changing it does nothing for me, sorry. It's not slicker. It's not "more complete". How much more complete do you want? "Click on icon, app starts." Really, you can't get much slicker than that without dipping the thing in oil.
Larger screen? That only helps if you buy a 10" tablet, which is something I really do not want to do. I'd rather get a netbook and be able to use Windows and Linux on it, if I'm going to buy something large enough to need to be put into a bag rather than a pocket. Subjective I know, but still..
What does the Android 3.x UI do to improve things on tablets over 2.x? I'm not complaining about faster and smoother. Faster and smoother isn't the UI, it's the mechanics underneath. Unfortunately all the supporting foundations mean shit if the bricks and mortar look like a dog's dinner.
Maybe 3.x is "better" and maybe not, but I feel I really have to counter this inane, mindless, almost Apple-fan-esque drooling worship of the Honeycomb. It's not a new paradigm. It's an annoying bunch of changes. Where is the button that says "fuck this, I want it as it was, it wasn't broken so don't fix it thankyouverymuch"?