A few things I'm not enamored with at the moment, but will get over:
-- it doesn't tell you when someone else has posted, which is havoc in the game threads
-- I miss the text above and below the avatar
-- we lost a lot of smilies that I personally liked, not to mention threads with tons of information and pictures
-- 60 second wait time between posts
A few things I really like:
-- it's much more organized
-- ignored users list/friends list
-- the software package is just nicer
-- search is back
-- the board is running a lot smoother and faster
All in all this is a transition that while abrupt, is much better in the long-run than what we had.