My initial impression is that it's about 98% the same as Firefox. I do like having it, though, because Dreamweaver has the ability to view your content in as many browsers as you like, and I do like looking at my content in several browsers just to make sure it doesn't look silly somewhere.
It's quite a nice browser, though. Dunno if it'll become my default. We'll see.
Edit: Registration codes via email appear to be backed up. Go here for one.