I hate using Safari. Many websites cannot be viewed using Safari. It rips off most of it's ideas from Firefox and does not even rip them off correctly. One positive thing is that it is easy to use and has a nice layout, but just the fact that it is not widely used keeps it from being all that helpful when surfing the web. Use Firefox instead. It is supported by most websites.

Safari is definitely clean and usable - perhaps the best from strictly a user interface point of view. However, it is edged out by Firefox in my opinion simply because of the plugins that come with Firefox and the additional functionality there.