I naively tried to send Feedback via the served Feedback page. On filling out the form and clicking “Leave Feedback”, it tells me (in simple text on a new page): “No input file specified.”
I would guess it’s at least in part the fact that I don’t have an SMTP config on the NSLU2. But I bet you could have put a redirect to this site in there.
I would have given you an 8 or 9, FWIW
And I still will; the package installed without complaint. When there’s better documentation on smart playlist setup, you get another point or two. 🙂