I'm fairly new to these forums so the change isn't as dramatic for me. But so far I like the new forums! They are faster, easier to navigate, and I like that I can add pictures from my hard drive rather than hotlinking. (Plus, I can click on the pictures to see them larger. Fooooood poooooorn.)
They still need to add a few features (like emoticons, quoting, threading) but I'm sure this stuff will be implemented over time.