Browser is a Browser. A browser with WebKit inside - thus there is no need to tell you about the browsing experience. There's simply is no better way to surf the web.
So - why another one? Because browsing should be about finding - not searching. Finding
- added support for OS X 10.8.4
- improved fraud and malware protection
- removed Google Reader support
- improved performance and stability
- fixed some bugs and glitches
- OS X 10.7.4 or later