It's not for everyone. If you are looking at it as a way to save money, you'll be sorely disappointed.
If you are looking at it as a way to get some extra pampering and privacy, and don't mind paying extra for that, it will be enjoyable for you.
It's not a meal plan. It shouldn't be looked at as such.
We pretty much always stay concierge for a number of reasons.
1. We like not having to stand in line to check in. We are immediately taken to our room, and can check-in at the lounge when we are ready to. We've had times where we've arrived, unpacked, gone to dinner, and checked in after dinner while enjoying dessert in the lounge.
2. We like to have a comfortable place to sit and relax, read the paper, have a cup of coffee or tea, watch tv, and chat with other guests. The concierge lounge supplies this amenity.
3. Small things like automatic turndown service, robes in the room, complimentary newspapers in the lounge, small welcome gifts (generally some chocolate, although the AKL has something very special for return guests.), just the little touches like that which can add extra magic to your trip.
4. Help with booking PS's, help getting difficult PS's, help changing PS's at the last minute, and it seems that when the concierge team books those PS's for you, you often get the best tables.
5. They will also take care of other requests, ordering flowers or gift baskets, leaving little treats for your children, arranging for fireworks cruises, etc.
If you want to do all of that yourself, and spend most of you days and nights in the parks, and don't care about turndown or other touches like that, then no, concierge is probably not for you. But if you enjoy spending time relaxing at your resort, and don't mind paying for extra service, then it's something to consider.
Anne