The poor ratings are unfounded. If you don't know what your doing then you shouldn't be fiddling around with this stuff. That doesn't mean it shouldn't be made available. If you're not a mechanic do you try to do your own transmission overhauls? Well not knowing how to recover from a CUPS problem and certainly not having the patience to learn how to help yourself is kind of the same thing. Don't mess with it if you're scared by it but don't let your feelings take from CUPS. Its not the problem, or Apple wouldn't have invested & continue development it as they do.

So after all that this new version has some good stuff. Look here for the changes:

http://cups.org/newsgroups.php?gcups.announce+v:146