How strange that one year later, I find another site with reviews of Librivox readings.
http://librivox.bookdesign.biz/
They have a sizeable collection of Librivox books, with reviews for most (if not all -- I have not inspected the entire library)
CAVEAT: it seems the only way you can download the readings from this site, is one chapter at a time ---- right-click and "save target as" will save the mp3 file. There is no option to download entire books. And be very careful about "download" buttons that are really attached to advertisements.
Otherwise, a very handy site. Hope you might find it useful too.