Being first time "big ship" cruisers, and avid travellers, we spent 2 years researching Alaska cruise info before booking our trip. So, we were able to book exactly what we wanted, and were very pleased with the size of the ship, layout and size of our cabin, location of our cabin, and our excursions.
We booked the train from Anchorage to Whittier on our own, and were on the 9:30 am train. A pleasant ride. NOTE: most hotels offer free shuttle from the airport to the hotel, and then to the train station. Don't hire a cab without checking this out. We stayed at the Hilton Garden Inn - which was fine. Nothing fancy, but we were there for only overnite.
At the train station, we checked our bags straight through to Princess and never saw them again until we got to our cabins. When the train arrived, it was a short walk across a parking lot to the ship terminal to fill out health forms and check in. We got there around noon. Chose to walk into town to buy bottled water, and then checked in around 1:30. Our cabin was ready, and our luggage was delivered.
dolphin 608. Terrific on all counts. Quiet, midship, port (chosen for southbound cruise), great storage, full size tub/shower (tub height a little high to step/climb over if that is an issue). Loved balcony. Duvet is hot and no other sheet provided. Requested a top sheet and blanket. Sheet was torn and dingy so we chose not to use it. Bring an extension cord and/or multi outlet strip for electronics.