We had a wonderful time. Food and service in the main dining room was fantastic, our cabin was superb and extremely quiet and convenient. Our sons had and interior cabin (6225) across from us that they enjoyed as well (although they preferred our balcony room!). Our only complaint about the room is that the bed was two twins hooked together with an irritating gap in the middle (covered by an egg crate foam - but still very noticeable). We realize this is pretty normal, but it would be nice if they could put a full mattress on there. The beds themselves are very comfortable otherwise.
Windjammer food was better than we expected - being that it is mass produced :)
The entertainment was also quite good, and our cruise director was hilarious!
Our sons participated in many of the teen activities and had a great time - although being that it was not during a school holiday the number of teens was low (we expected this - certainly not the cruise line's fault).
We will absolutely sail RCI again, and were impressed by the service and quality we experienced throughout our entire voyage.