Recently returned from a 30 day (back to back) cruise on MS Rotterdam. Overall it was a good cruise - most of the ports were spectacular and interesting.
We did all our arrangements through HAL. Flight from ATL was OK and HAL representative was there in Amsterdam and we got on their bus to Rotterdam. I made sure all our luggage was on the bus and we got to the port in Rotterdam in good order. We were then told to go ahead and go into the terminal. Check in was very slow and were finally (after 2 hours) allowed on board.
We got on board and did a quick check of the ship. The ship is a bit older than most that we have been on, but generally looked clean and well appointed. I did notice that windows were not consistently cleaned.