I just downloaded the plugin and stopped thinking about it.
And I like the ability to use calibre to modify metadata on the ebook itself, like removing all those stupid "%s: A Novel" bits in the title, or the ones where they repeat the series two or three times but may not mention which number in the series it is. I like them strictly in the format
Code:
{title}{series| (|, }{series_index|Book |)}
SO, I have to keep the books themselves managed from calibre, so for cross-device support I need them DeDRMed. Fortunately, it is a no-brainer to do, as it all happens automatically.