Been toying for 2 days now. Seems a little more appealing to the eye and comparable capability. The top sights layout is pretty cool. I got my brother checking it out too. He's a firefox nerd.
I stick with Firefox mainly due to all the Web Design addons it provides... it used to be really fast as well, but has become bulky as of late and a bit slower than some other browsers.
If you're using it just for surfing the net, Safari is a great alternative.