To break the news quickly: Open Office is nice, but no dice.
I have tried using it, ended up appreciating some features (native PDF, OpenDocument Format and type completion as you type for recurring words), but in the end it is just insanely frustrating to use on a daily basis.
Let me clarify I am by no means a commercial software fan, most of my work consists of open source related work (as many who know me by now should know), but the user experience that is Open Office is like pulling nails at times.
Of course, these kind of comments probably get flames from the open source peanut gallery and personally I couldn’t give a flying hoot. It is all about user perception and ease of use and at the moment it still falls flat on its face in those departments.