We just got back from the Sept 2-9, 2012 Oosterdam Alaska sailing from Seattle. It was the first 7-day cruise we had done in 10 years and seemed to have a much younger average passenger age than the 14-21 day cruises we've been doing and lots of West Coasters that booked last-minute like us.
We last sailed the O-dam in late October 2011 on a 21-day Hawaii/Mexican Riviera Collector's cruise. Captain Van der Loo and Deejay Brett were on that cruise and this one as well. I have very high regard for this captain as he made some critical decisions last year with a triple medical evac on the Hawaii cruise. Brett is highly energetic and lots of fun. He remembered us from last year and we enjoyed sailing with him again.
I was happy to see the condition of the ship was better than last year, even though it had just emerged from dry-dock at that time, which you couldn't tell. While we were sailing then, much of the public areas got new carpet and our cabin carpet was cleaned on the cruise this year. I didn't notice shabby/dirty upholstery on this cruise, but the cocktail tables throughout the ship (particularly in the Crow's Nest) need to be replaced.