I have switched my movie list to Griffith, it was quit some work. I could not help it, Griffith is much much better than my previous system.
Anyway, apart from the other thread, I noticed the following things, that could be improved:
- keyboard shortcuts for common request: get data from imdb, get poster from amazon, pressing enter after entering a title automatically searches on imdb
- Changing the rating automatically switches the "Seen it" trigger (make that an option perhaps, so people can rate without having "seen it")
- Limit the character number for director, year and such things. Some movies did not return the correct pages, everything was stuffed into director, messing up display.
- Default backup folder should be selectable
- The poster viewer has some bugs. Sometimes it shows nothing and there is a poster, sometimes there shows nothing and there is an all black poster. I am not sure, what triggers the behaviour. Sometimes it simply works.

- The "new" button should not be on the main window. Place it somewhere hidden, one should not need it often and it is kinda scary.

Thanks for your work on Griffith, you did a great job.

EDIT:
- the position of the windows should be saved upon quitting the programme.