First and foremost - the food:
Breakfast on board was excellant. Lunches were very good. Dinners were another story. While none of the dinners were bad, and some quite good, a lot of them were bland and pretty much without taste.
The one or two shows were very good, especially the galss blowing show.
335 was great. Close to the library where we went to talk with friends, read, have a quiet drink, etc. Also, in most of the ports it was on the river side which made the views better.