Just downloaded your program in an effort to clean up multiple versions created by a backup program, pre-restore.
Love it, so far. The one thing I'd offer as a suggestion is an "inline preview" of the file, when it's a photo/picture file. So I don't have to open preview / close preview / mark files to delete. I.e., a column that displays a small thumbnail of the photo.
It'd also be nice to be able to include photo tags ("date taken," etc.)
Thanks, though!