Very glad to see these freely available though.
That said it's not a bad place to start. I loved the Butler prose translation of the Iliad and Odyssey because it was fun to read and straightforward. Now that I have moved on and love Pope's and Lattimore's, I would recommend those over it - but if someone bought one, I wouldn't "tut tut" or anything.
My advice with translations is always to gather a few, read the first few pages or chapter in each, and go with the one that you like. There's always the chance you'll end up with a Bowdlerized version or something (I did with the Count of Monte Cristo, the old ~1850 anonymous translation) but if you enjoy the book that's what matters - you can always read it again or fill in the blanks.
This would simplify discovery of works which are not available elsewhere, as well as discovery of works which have been (re)translated and are available for purchase.
Something like http://openlibrary.com at the level of individual works, assigning unique identifiers to each, since ISBNs were not around back then. Maybe there's already a project or standard within the library community for identifying these works uniquely.