Coincidentally I am currently building a few template ODT/ODG documents on a up-to-date Mac in LibreOffice 3.5.4 that are subsequently filled and converted to PDFs via JODConverter 2.x on...

    $ cat /etc/lsb-release            
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=7.04
    DISTRIB_CODENAME=feisty
    DISTRIB_DESCRIPTION="Ubuntu 7.04"
    $ dpkg -l | grep "openoffice.org "
    ii  openoffice.org                  2.2.0-1ubuntu3                         OpenOffice.org Office suite

and the output is virtually the same, barring a slight difference in font rendering.

(and I too, ditched Office when it completely failed to open my final home produced Word 97-produced document in Word 97 at the university, while Word 2000 did open it with all images suddenly placed at the top-left corner of the first page. StarOffice on the Sun workstations opened it without a hitch, with few pictures offseted by only millimeters. At that stage I could care less about font substitution.)