cactuslady...we'll be on the Navigator with you and we are former HAL cruisers - over 200 day but left them for RSSC - for some very good reasons, at least in our minds.
We've been on the Prisendam when it was part of Seabourn and we loved the ship AND we've always had a suite on HAL's bigger ships, so we had some very good comparisons.
You won't get "free" laundry and dry cleaning, but the laundry facilities on RSSC have no charge. They have the trivia, daily quizes etc. The bingo doesn't really compare, so that may disappoint you. If you were getting free wine on HAL, you were on a different cruise than any I've been on.
RSSC has wonderful food, teas etc. I don't know about the herring - not one of our requirements.
Hope to meet you on the Navigator and we can discuss more. If you have other questions let me know! See you soon,