I just got that upgrade, too. The only thing I've done with it so far is remove the annoying Favorites Bar from the Toolbar...
Does it have useful features?
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."