Following along too.
The wife and I will be getting on as you get off on 29th.
We too booked YC inside as a bit of a treat as it's our 25th Wedding Anniversary, we also had an eye on bagging an upgrade to Deluxe Suite (Balcony).
As of right now, there only seem to be 4 of these left and no interior, so feeling a bit anxious!
I hope you both have a great cruise and I look forward to reading all about it here.
Bon Voyage!