True.
The problem is even worse in Office 2013 than IE10.
I tried Office 2013 on Windows 7 and still the font rendering was terrible, so I had to roll back to Office 2010.
At least IE10 on Windows 7 is usable, although still not as clear as Firefox and Opera.
I second that Office 2013 fonts are absolutely terrible
I was hoping to go back to Windows 7 and keep Office 2013 as I thought it was Windows 8 causing the problem, but it looks like that is a dead end as well.