I really like it!
However, If I were King for a day, and had a chance to change something about it, I would have provided more customization to the Touchwiz calendar (e,g., view schedule for mulitiple days), and would not have removed the option to see in a quick glance of "unread" email on the email widget.
I use my Tab for everday life (personal and business), and my main homescreen has both the calendar and email widgets. Stock Honeycomb had these working perfectly for my use, but the Touchwiz versions of both widgets have lost functionality for me that I really liked and used.
Otherwise, the experience has been good, and I would not go back to stock Honeycomb.