Jason,
We did our first ever cruise on the Navigator in September. The suites are wonderful! The singles on board told us the rates are incredible if you're cruising solo.
My husband wore khaki's on Casual nights and a suit on semi-formal nights.
We had a bottle of Absolute and a bottle of Bacardi in our room and took both home! The menu in your room lists what foods room service provides, but quite honestly, we never used it.
I think you would enjoy it!