Now that the Dream is out, I think Disney will need some consistency in their concierge offerings, but who knows if that will happen.
The only free happy hours on the Magic are when you board and meet with the concierge team and the night of the concierge reception. We've cruised concierge 4x on the Magic and Wonder and have never asked for a glass of wine in the cabin, and it wasn't something that was offered.
The concierge will visit you daily to see if you need anything and to drop off a daily treat. You will also be set up with the 6 cans of soda and 2/3 bottles of water. The concierge will make swaps for you if say you'd rather have all diet cokes v. cokes and sprites.
You will get a dedicated line to the concierge if you need anything (extra Palo reservations, charging your tips to your room, stateroom issues, etc).
Also, the concierge will help you if you'd like to order from the main restaurants and have dinner served in your suite, but you would be charged for any alcohol you have with dinner in your stateroom.
The concierge lounge is definitely a nice addition to the Dream, and that definitely adds to the concierge experience. One concierge on the Dream told us that the Magic and Wonder are starting to get more complaints as folks have sailed the Dream (or read about it), and then come on the Magic or Wonder and ask "where's the concierge lounge?" I just don't know that the Magic or Wonder has any space to convert for such a thing.
However, I will say, give me a midship Cat 3/T suite on the Magic/Wonder any day over the Cat Ts on the Dream. The Dream suites we felt were cramped. Sure, the bathrooms were nicer, but the layout on the classic ships is much better.