hi, we did the land/sea in June and stayed at POR. We did take the bus for our transportation. I would recommend it for at least the first time because there was a great video for 1st timers. However, I'd take the limo if offered! There are seperate buses for the cruise line from the airport. I thought we would have a seperate line when we got to the hotel. We all went into the same line unfortunately. It wasn't bad but there were alot of people checking in and out.
It was great to have just the one check in. When we got to the cruise we simply walked on through. We turned in our cruise documents on the bus on the way to the cruise. Also, I found it unusal that no one checked our birth certificates at any time.
One thing to beware of is that we did not want to charge on our cards at the hotel so we asked them to take it off. However, this is the same card that you will use on the ship. We didn't realize our mistake until we got on the bus to the ship. They did give us new cards at guest services.
Have alot of fun!