Anyone ever done this cruise 12 days starting in Barcelona, Holland America Nieuw Amsterdam .Is taking the tours offered on the ship ok or is it better to take private tours offered by operators such as Tours of Italy? Costs seem to run around the same or just a tad higher by the private ones. Seem to be more intimate as they would take up to 6 or 7 versus a motorcoach with 50 or so. I wonder if you would be able to see more on a private and be less tiresome. Some of these eg Rome /Florence are a full day 9-10 hrs. Any suggestions would be appreciated.