Here is what you can expect based on our 2017 Viking cruise with free air and transfer:
Our flight arrived Amsterdam 8:45 AM. We waited in the airport for more arriving passengers before leaving around 10 AM. We boarded the ship docked short distance from the Central Station around 10:30 AM. They wrote down our room numbers and told us to have lunch in the Aquavit Lounge starting at 11:00 AM and they would call us when our room is ready. Shortly after 11:30 AM, we were in our room with our luggage. We spent the rest of the day sightseeing (museums and canal cruise, etc.). One of the smoothest embarkations we ever experienced. Enjoy!