I am generally not enjoying the new forums -- I find the discussion disjointed and hard to follow. In my opinion the old forums were much better or at least more functional.
That said I realize there is probably no going back.
I am having particular difficulty trying to something that was at the core of my usage in the old format. In particular there was a url I could go to that provided a list of all unread posts across all forums. I was able to quickly scan them, view what I wanted to view and mark all as read for the next time.
There seems to be no easy way to do that in the new forums or maybe I can't see the forest for the trees.