Great idea, but it has crashed on me several times.
Additionally, the default apparently is to NOT ask me to add artwork when there is no conflict. This caused problems as it happily assigned similar, but wrong album names in a flurry that I couldn't stop. I figured out to change the default, but I think it should be other way around for new users.
Since itunes lets me add any image file as my artwork, I was able to download images from google. I used corripio as a guide to know which albums had no artwork, but used itunes to add the artwork.
I have a some not so unusual albums which did not come up on the corripio search, but which I could easily find myself through google or amazon.
Like I said, great idea, just needs some greater precision, or better access to wider pool of art. Not crashing would be nice. As it was, I had to go back and redo several albums that had been incorrectly arted by corripio manually in itunes.