Fix Songs Basic Options

Preview Only
For songs already matched
Rename files based on metadata
Update Artwork
Update Genres
Update Mood and other acoustic attributes such as BPM (Pro only)
Only allow match if all songs in grouping match to one album
Only allow match if all tracks in album were matched
Base Folder / Sub Folder
Save changes to iTunes

Basic Options, these are the options that you are most likely want to change.