The addition of presets in the playlists, which allows for selection by genres of music, iTunes playlists etc. makes for a greatly improved and more useful app. Now it's fun to tinker around with the slick UI. The playlist view is very polished, sort of like the clip viewer in iMovie, but as an album artwork bar chart.

It was a little irritating that I wasn't able to change the value of the checkboxes on previously saved presets (such as "Do not allow duplicate songs" etc.) without invoking a new custom preset, but this is a minor issue.

Upcoming releases are supposed to improve on the music analysis, which is needed at this point; the BPM algorithm made several mistake with my iTunes library, which were not multiple of 2 errors, and therefore not remedied by the option of doubling or halving the counts. Luckily there's a BPM calculator that allows for manual fine tuning and corrections.