Transfer to ship: Transfer to the Oosterdam from the Sea-Tac Airport was smooth. There were tons of Holland reps around to steer you to the correct location to board the bus to the pier. The Holland people also take your luggage, which reunites with you in your stateroom later in the afternoon.
Embarkation: Embarkation also went smoothly. I recommend listening to Holland's reminders to check in online. If you do that, most details are taken care of so that once you arrive at the check in desk, there's little left to do other than take your picture and get your key.
Room: Room was a VH category. It was in good shape and well maintained throughout the cruise. There is lots of hidden storage space to take advantage of -- under the beds, in the stool at the dresser, in the sofa, etc. so that you can keep your cabin tidy and easy to move around in.