Love the app: Wonderful UI, quite full-featured, etc. Essentially, it is iTunes for comics - and does a great job as such.

A few suggestions to make it even better, though:
1) Add a keyboard shortcut for "Show Comic File" (how about "Cmd-R", to match iTunes? The 'Rotate Right' command could be changed... )
2) Add AppleScript support. I'd love to be able to create an Automator action which:
- Copies a dropped comic into my designated documents area for such files
- Opens this comic within CBL
- Adds that comic to a specified list within CBL (e.g. "To read")
- Modifies tags for that comic, based on filename, user-prompted text, etc.

All but the first step (a Finder action) cannot be automated, due to lack of script support in the app. This might be a significant development effort, but would be very beneficial to several users.