The only time we felt much motion was on the sea day back from Skagway (Friday) We had near gale force winds and it was very noticeable. But then I am prone to be motionsick. I had the patch and was taking meclyzine also..spent most of the day resting...But otherwise it was wonderful - I would not hesitate to book the Lido cabins again...the view is great, it's convenient and the hallways are not as long...we loved it.
The even numbered cabins are on the port side, odd numbers on starboard.
Let me know if you have any other questions. And congrats on the wedding...