Constellation is an older ship and needs it's planned upgrade next year. having said that it is well maintained,very clean and has a good happy crew
The layout does need re modeling but the larger lounges and cafe are good points over Solstice class ships but the lack of alternative dining options and under used areas are worse.
We were not happy at all with luggage arrangements at Venice Airport. All of us on Celebrity arranged flights had to lug luggage out to coaches ,load it and then unload it at the cruise terminal before it was taken off us.... Cost cutting ??