My wife and I just returned from a 7 day cruise to Alaska on the Sky we sailed on 7/12/03 from Seattle. We are both 38 years old and have kids, but we traveled without them. The Norwegian Sky is in very good condition (it was built in 1999). Everything was working (pools, spas, elevators, etc.). The only exception I noted was that the plastic outdoor tables in the Great Outdoor cafe are looking a bit rough and should be replaced.
Shaun, our port and cruise consultant, was fun and entertaining.
We ate our dinners in the Four Seasons and Seven Seas restaurants -- very good service.