I gave it a quick try myself.

Can't drag tracks onto the window -
Have to use a non standard file browser dialog to locate tracks -
No way of typing in a path to where the music is -
Seems to be very slow at accessing network shares (as compared to browsing them in Explorer -
Doesn't seem to have any way of picking up new tracks appearing in a folder (but then iTunes handles this far, far worse) -
Isn't iTunes +

I'll be sticking to iTunes for now cry
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Remind me to change my signature to something more interesting someday