Whenever I save an odt in Writer 3.5, Word 14 opens it complaining it's corrupted.
I found an ODF validator, it reports that Word 14's ODT is 1.1 and is invalid, with a few references in manifest that shouldn't be there. In the same validator, Writer 3.5's ODT is 1.2 and is also invalid, with an attribute that's everywhere and isn't expected.
As I've tested, Word 14 is better than old OpenOffice in converting complex doc documents to ODT, and Writer 3.5 is better than Word 14! I have a very good doc template with TOC and some good styles, I wanna convert it to ODT and manually edit it to make it even better. But I'm afraid of converting and losing data, or creating an ODT that in the future won't be properly opened by newer editors.