Just for the heck of it I downloaded and installed Safari web browser from Apple. I pretty much use Mozilla's Firefox for 99% of my web surfing and if you twist my arm real hard I might even use Internet Explorer once in awhile.
The interface is fairly straight forward and simple to figure out. I notice the Apple grey color similar to my iTunes interface so at least they are consistent. Web surfing is comparable(as far as speed) to Firefox or IE. One thing that was obviously missing was tabbed browsing which both IE and Firefox both have. I've gotten so used to it that I didn't realize I had about five windows open before I noticed. I don't see any options for it either. Kind of surprising given that this was the latest release.
All in all it seems like a competent browser but kind of seems spartan. I would expect something more from Apple. Perhaps I had to high expectations. I may try this out once in awhile to see how different pages look or have trouble opening or viewing stuff in other browsers. I'll be sticking with Firefox for now. On a scale of 1 to 10 I give it about a 5.