Been there. Done that. Pages export works just fine. The layout folks have not reported any problems over the last year .
You've got better luck than I do, then. Whenever I try to export something from iWork into Office, what I get is a document that is, best case, "something doesn't quite look right" or worst case, it doesn't work at all. Sometimes it causes strange things to happen with frames or anchors or whatever, so the converted version is essentially read-only -- change it, and all goes to hell.
I made a nice presentation in Keynote and exported it to PowerPoint, and was horrified. It looked "almost right" but my beautiful transitions became a cheezy mess, the graphics were dithered and lost some of their anti-aliasing effects, and the PowerPoint file was huge because every instance of a graphic seemeded to be converted into a separate bitmap. It was an embarrassment to hand that out. Everyone else said "Eh, good enough" but I lost a lot of pride of ownership -- call me arrogant but I like to think that I can produce work that's a notch better than average (seems to me that's the whole point of Apple products), and this conversion turned it back to average.
I also worry about future compatibility. For an organization I volunteer with, we keep having to reinvent the wheel because previous editions were done in software that's not available to the person currently taking on the task. (We're all volunteers, and sometimes the guy with the great software can't do it this year, so another guy takes on the task but has to make do with what he's got.) Some documents have moved from WordPerfect to Word to MS Publisher to Visio to Pages to AppleWorks and back to Word again as a result, and each time the person has to start from scratch.
I continue to seek out a Windows PC with Publisher to update our yearly forms because I don't relish the work of redoing all the layout in another program (it's just easier to find a PC with Publisher, change '2007' to '2008', save, print, and be done). I don't want to similarly enslave someone else by, say, using Pages to make a slick document, but then force them to seek out a Mac with Pages every time it needs to be updated, or -- worse, in my view -- converting it to a sub-par Word version. Might as well just use Word in the first place and make it look nice to start with, and propagate that.
But, again, everyone works differently.