As others have said, this is an app I have an absolute love/hate relationship with.

I really appreciate all the work the dev puts into it, but it’s a slow app that just isn’t very usable. It’s not just that it’s ugly, it’s that it’s poorly designed. And yet, nothing else even comes close to doing what it does.

I even wrote out a spec for a similar app that was built using a more modern framework/usable interface, that some friends and I could potentially build, but the task was so monumental and the return on investment (and I’m not even talking about money) seemed so small, we shelved it.

That said, I would be remiss if I didn’t mention that DeDRM is the reason a lot of us use the app — I know it’s a key for me — and that does have an excellent CLI tool.

There are also some good iOS apps that work with the book server, for accessing lots of ebooks. Even then tho, those apps are labors of love where the core audience is both critical and shockingly cheap (I say shockingly b/c many pay thousands on ebooks and ereaders a year — it’s an enthusiast market). One look at the MobileReads forums (a fantastic resource) for any specific app, and I kind of understand why we don’t have a “good” Calibre that is OSS for paid for that matter.