I have a nephew who is trying out the MSC Yacht club in December. He will report back to me- As far as the issue with water and soda, I never recall a butler, except when we sail in Royal suites, getting us any beverages. We typically went to the Suite lounge and brought back all the water and soda we wanted and put it in our cooler.
I agree, the Edge class ships have much better suite lounges and suite decks- but they are also more expensive. We will be on the Silhouette for the third time this January.