My wife and I had previous experience of Celebrity in the days of its independence and in the smaller boats around the Caribbean.The new parent company Carnival and the larger boat completely change the character but retains some for example - we still excellent food and service.
Objective reviews are based on personal circumstances and although my wife and I are retired we are still extremely independent and active and were using the cruise for little R&R after a hospital operation. That is as a high standard floating hotel to try the food/ drinks/ read a little and good company. Ideally eclectic mix . Plus see some of the interesting places around the Mediterranean - one of the reasons we chose this cruise.
We booked at the last minute and for the first time had an interior cabin - it proved impossible to upgrade and I have to say it was larger than any cabin I been in previously and did not detract from the holiday one iota. Plus the room service was good.