I have never taken one of these shakedown cruises.  I did talk to some passengers on the Koningsdam inaugural cruise when were in the same port in Rome.  One couple said that everything was great; another couple mentioned several mishaps.  Sound familiar?  If you have ever been on one, I'd like to hear about your experience.  Sometimes cruise lines put their best staff on a new ship for a few weeks to make sure that things go smoothly.