Millennium. Far East, April 2014 - 28 days, back-to-back
As an experience cruiser (20 cruises, on 4 different cruise lines, in 12 years), my opinion is that the Celebrity Millennium is a ship that appears to me to be well past it's "Sell-By" date. Dark, old fashioned, and with inadequate levels of crew, unable to provide passengers with an acceptable, or the expected, level of service to reflect the cost of the cruise.
In the first quarter of 2014, the Millennium experienced a serious Novovirus problem, which spanned at least 3 (probably more) consecutive, two-week cruises, including our 28 days, back-to-back cruise