We are booked at CSS June 26- July 3. Never been to CSS, only CN to date

We have a one bedroom Ocean suite, can you suggest the best room(s) to request?
Best place to reserve a Private Dinner, I heard the Wedding Gazebo is the best?
We are returning Couples, the dinner is on Wednesdays (same day as we arrive). How can I ensure my reservation since we will likely arrive at 4PM?