After having translated a complete user manual that you converted from PDF to ODT to be able to work on it in OmegaT, you receive another manual from the same client, but this time it’s a DOCX file. Great! You can start right away, without converting anything. That should be a peace of cake — half of the manual looks almost the same as the one you have just done.
After starting to work with it you find out that getting a lot of 95-97% would be really awesome, if it wasn’t for all those nasty tags that are very different in the source and in the match. And there is no “Insert match without tags” menu item in OmegaT (yet).