> Expanded lunch and dinner room service menu from The Grand Dining Room.
You can order room service from that day's GDR (lunch and?) dinner menu during GDR hours, but AIUI as a single delivery, not course-by-course. The other problem when in Concierge is finding a suitable place for 2 to eat at the same time.
> Complimentary laundry service – up to 3 bags per stateroom
The kicker is the 3-day turnaround.
> Exclusive card-only access to private Concierge Lounge
But only on Riviera, Marina, Vista, and eventually Allura. The 'R'-class ships don't have one.
> Complimentary welcome bottle of Champagne
$1.98 stuff
> Priority online specialty restaurant reservations
If you *must* have 2top, 6:30pm slots rather than 8top 8:30pm, this can give you better chance -- more important on 7-day voyages than 14 (more days = more slots = less competition)
> Unlimited access to the Aquamar Spa Terrace
AIUI, the cardkey access on the 'R'-class ships has been removed. Open to all