Service and food-wise, this was well up to the standards we have come to expect on Silversea/ Seabourn / Windstar, although I still prefer the smaller ships and all-inclusive cruising. Having said that, we had so much shipboard credit (which could be used for excursions as well as for drinks etc) that I didn't feel so conscious of having to pay for everything on board. Soft drinks and water were free, unlike Cunard - in fact everything was so much better than our recent Cunard cruise I find it hard to fault. As another review has said, the cabin stewardess was superb, and we didn't experience any poor service.
We normally like to sit on a shared table. On some of the smaller ships it is free seating so you can move round and meet lots of lovely people. I was rather dreading the Crystal dining arrangement as it is fixed seating (they say they have invented a pre-booked free seating which means it isn't really free seating at all, and you only get your own company) but it actually worked fine. We did get nice table companions, and on a day when everyone other than us happened to have booked one of the other restaurants, the maitre d' put us on another shared table to we met some other folk too.
As a non-meat eater I found my choices limited some days, but overall found the food to be of a high standard.
Two of the 'other' restaurants could be booked and were free - plus of course the Lido. But as the other reviewer has mentioned, closing the Lido at 1.30pm is rather earlyu if you've been off the ship in the morning - especially if like me you don't eat meat and therefore have no interest in the only alternative which is burger type food.
We were among a very small number of non-Americans on board (in fact on the first night they told us there were something like 12 Brits, 200 Americans, and 250 Californians! Entertainment was pretty good - we don't go for Las Vegas type shows, but apart from an American comedian whom we couldn't understand, most of the rest of the acts were good and one or two were excellent.
We don't normally bother with excursions on cruises (generally poor value for money) but with our shipboard credit and the fact they were a bit more reasonably priced than is often the case,we did take a few on this Crystal cruise and they were well organised and interesting.
All in all, I might consider Crystal again if we got a really good price offer, but even the on-board "two for one" offers on future cruises struck us as very expensive. (Unlike the other reviewer of this cruise, we wouldn't consider Celebrity etc, as even a ship like as big as Symphony with about 800 pax was really too big for me.)