Their UI designers have done a good job desiging the browser shell itself. Things are where I need them to be, and the default skin is something brand new from MS. I'm enjoying it so far (tho it won't replace FireFox as my default browser). It's a long-overdue step in the right direction.

I would assume that version 2.0 of OO.o will support track changes, since the version 1.1.3 that I am running does... (look in the Edit->Changes submenu)

It has even worked with the MSWord track changes the few times I have tried it.