Royal Silk layout on the 777-300ER isn't the best for two pax travelling together - it's not so easy to talk "over the divide". If it were up to me, i think I would take seats either side of the aisle (one on the window, one in the middle) or two seats, one in front of the other.
Setting that aside, I quite like this cabin because it does seem to offer place to "hide away". Some find it too claustrophobic, however.