At $20 per day more it would not be worth it unless you are going to ignore the MDR all cruise and always eat at extra charge venues. We like the MDR. Most of the casual venues mentioned have a charge now except for the Pizzeria on some ships
It is but when we were on her in June it was super packed on the 2nd leg with families and tons of kids. Many cabins even insides had 4 people in them and the wait for the pizzeria was up to an hour on sea days same with the sushi bar
I have not seen any cognac or brandy since 2022. We just change all hard liquor to vodka and bring them home on water bottles since we have plus packages
Full suite perks such as concierge service are not part of reserve mini suites. About all you get above regular mini suites is what Princess regards as better location, some bottom end wines and reserve dining room. If you want full suite perks you need to book a full suite