is a worthy upgrade for businesses and individual users who need professional-level productivity apps, but it will take some time to get acclimated with the reworked interface. Users looking for bare-bones, dead-simple office software should stick with Google's and other online offerings or continue using older Office versions they have already mastered.The world has changed plenty since Microsoft introduced Office 2007. In that time, Google has become a major player, with its suite of online tools, and even Apple has made inroads with its iWork office suite, though admittedly within a smaller set of computer users.