Just got it. Not deep enough into it for much to say. I really wanted to upgrade the whole office (five machines), but I just can't justify it, so I'm only putting it on two machines and we'll save backwards for InDesign work if needed (glad they have that feature).
InDesign's new object styles is my favorite new feature. Many times I'll have multiple frames that I want stylized the same and hated having to go through and change each separately. Or like a same drop shadow effect on multiple objects. Very nice.
The Bridge seems fairly well implemented and nicely laid out. I'm not sure how often I'll actually use it. I'm kind of stuck in my old ways I guess. Plus, when I dl'd a stock photo comp, I got an error when trying to load it into Photoshop! So much for convenience. I was able to manually load it once I found it in the Finder. I liked the updated web information (tips and tricks and news). At least I think it was updated via web.
Illustrator's Live Trace seems to work very well. Also, it's a temporary effect until you Expand it permanently, which is great. It's also very fast. Great job Adobe!
That's all my very limited xp so far. Looking forward to more. Admittedly, overall it seems like fairly minimal and subtle improvements, but to those of us who make a living with the suite, they may indeed be valuable and worthwhile.