[Ken Maltby]

I consider myself "people". (But then so do my dogs, and the squirrel who thinks it owns anything it can find in my backyard.) I like Koreader on my AuraHD. I like having an organized listing of books to browse through, when looking for my next read. If I want I could also use the search engine in Koreader's File Manager, or search the calibre library on my PC and download that to my device, from my device.

I like to browse when I don't know what book I might want to read next. If I know the book I want, the directories and folders structure makes it easy to find. The structure makes both browsing and going directly to a specific book, simple.

With Koreader you can use either or both calibre generated folders or your own, and both can be hidden from Nickel's processing.

I read .epub (not kepub), .pdb, .pdf, .mobi, and others in Koreader.

But as I keep saying you can try it out without effecting the stock readers, it is just an additional reader, not a replacement. (I don't use the stock readers anymore, so for me Koreader has replaced them, but that is by choice.)

There is a thread somewhere that describes how to setup a calibre OPDS server on your Dropbox account. Koreader has OPDS support. There are also reports that Dropbox is dropping accounts that use an OPDS server, if copyrighted material might be served to the public, that way.

Luck;
Ken