Have you flown J before? If not be aware that you can use priority checkin and security. I got separated from my friend who hasn’t done much up front travel and when he eventually appeared he had been standing waiting in the security line for a while.

Enjoy the SSL, I’ve heard some people found it a bit over the top but generally good reviews.

Unfortunately AC J service can be hit and miss. It can be exceptional, it can be a bit meh. So temper expectations and hopefully be surprised.

I assume you are aware that premier Rouge is significantly off a lie flat J seat and more like domestic J? It will be okay not not exceptional on the return. Better than Y of course.