I used Safari to start with when I bought my Mac mini (Mountain Lion) in April but then discovered (a) it has no method of sorting bookmarks alphabetically and (b) there were reported security problems with Adobe Flash Player. So I switched to Chrome, which does allow alphabetical sorting of bookmarks and has its own non-system wide flashplayer (supposedly safer?). I've been perfectly happy with it so far.
I don't have any problems myself with Finder, but then as I am currently running Windows 7, Windows 8, and Ubuntu 12.04 as well as OS X 10.8 I suppose I have increasingly become more adaptable!
Bazza wrote: ... it does have its foibles...
As do all operating systems in my opinion. I've yet to find the perfect one.