We were on the Rotterdam in the Med in October. A nice ship with good cabins. We found it very quiet,as we did on another HAL ship in 2004. I am pretty sure you will be at the lower end of the age scale, particularly as it is a Transatlantic cruise.
Food we found very good, but everyone's taste is different. Don't be afraid to order two main courses if you find one is not enough!
Room service we found to be excellent and does not cost any more.
Take note of a previous post re:guarantees. It is not a good way to go if you want a particular cabin. It is not like an hotel with a different clientele every night. Once you have your cabin, that's it. People do not get off between stops!
Have a great trip and honeymoon.