I totally agree. My wife and I (we have never flown this married, but only engaged, but will be flying it in October) always take two of the middle seats.

The only downside is that you have different crew serving each one of you as you are in a different aisle. Usually the crew try and sync your drink pouring, meals, etc.

You will have a blast. Also make sure you are well rested ex. Sydney so that you don't sleep too much (unless it is Dom induced sleep)^^^