Alaskan Cruise and Land tour through Princess Cruise Lines?

I am taking an Alaskan Cruise, 7 days, and a 3 day land tour following up into Di National park via train. Has anyone done this trip before?? I would love to be able to talk with someone about their experience on the ship, their shore excursions, how things went, the weather? We are leaving July 30th and returning August 10th. Anyone have a trip like this?