We spent 12 great nights aboard the Celebrity Solstice,we did the Eastern Med aboard her in 2009 and she still looks great.Aquaclass was worth it to us for the relaxing ambiance of Blu restaurant not so much for the Persian Gardens.
We only took one excursion,to Herculaneum it was good and convenient as we did not dock at Naples until late and the thought of the train in the heat defeated us.[We did Pompeii and Sorrento ourselves in 2009,so we know we are capable but were lazy this time!]
In Villefranche we visited the Rothschild Mansion and most other ports we just strolled,we had visited Venice,Florence and Rome before.