My standard for a new system is that I should easily be able to move to the same level of competence/capability as with the previous system. If your competence was low enough, Vista and Office 2007 are great. I'm finding them "difficult."

OT but John, you may be interested in this article regarding the MS (I believe now ISO std!) OOXML.

One bit that particularly caught my eye was a difference in approach by this and ODF for some simple formatting:

  MS OOXML Way
  Format             Text Color                                         Text Alignment
  OOXML Text         <w:color w:val="FF0000"/>                          <w:jc w:val="right"/>
  OOXML Sheet        <color rgb="FFFF0000"/>                            <alignment horizontal="right"/>
  OOXML Presentation <a:srgbClr val="FF0000"/>                          <a:pPr algn="r"/>
  
  ODF Way
  ODF Text           <style:text-properties fo:color="#FF0000"/>        <style:paragraph-properties fo:text-align="end" />
  ODF Sheet          <style:text-properties fo:color="#FF0000"/>        <style:paragraph-properties fo:text-align="end" />
  ODF Presentation   <style:text-properties fo:color="#FF0000"/>        <style:paragraph-properties fo:text-align="end" />
  

One seems consistent between document types. The other, I'll leave to you...