With the rave reviews I've seen for this ship, I wonder if our recent cruise was on the same ship of the same line. I'm not sure where to start but I do know where to finish, so I'll begin with that - our experience did not meet our expectations and we'll never take another cruise on the Silhouette, nor on Celebrity.
The room (we had a concierge class verandah) was fine other than the lack of storage space that others have mentioned. I know the rounded bed edge allows for a narrower room (saving a few inches in each room means more rooms over hundreds of feet of ship), but the curve was enough to put my feet dangling out into space, which was uncomfortable for me. I guess maybe they market to short people?
What was good? The attitudes of many (but not all) of the service personnel. Cabin attendants, most dining room personnel, etc., were friendly and accommodating for the most part. To passengers. On the other hand, we witnessed more than a few rude and nasty conversations between such people and others who seemed like their bosses or area supervisors. I don't know, is it run like a slave ship where the low level employees (many of whom are likely poor and/or from third world countries) are simply trod upon? Whatever was at work, these displays were unpleasant.