Originally Posted by cruiser2007

Celebrity does offer excellent food, service and entertainment.
All prospective passengers should be aware of the propulsion (pod) problems on Celebrity M-class ships. The Infinity, Summit and Millennium have had the most pod problems.
These three ships have had fourteen emergency dry docks since the introduction of this Celebrity class of ship in 2000. All have resulted in shortened itineraries and cancelled cruises. The Constellation has the best record of the M-class ships with only one pod failure since its launch in 2002.