Rated 3 out of 5 stars
Not for OSX migrations from Eudora 6!
Message body of many imported e-mails becomes invisible. Hours and hours of troubleshooting and re-installs, but the problem was finally solved only by using Eudora Mailbox Cleaner instead. (That's PowerPC code so you're probably out of luck if you're on Lion).
[to the editor: If I could "Use the available support options for each add-on" I would. Where are they?]