It's a wonderful process and once you experience it, you'll never wait in line at check in again. You receive turn down service and robes in the rooms, but the service is what really distinguishes the concierge floor from the standard floors. WebmasterPete Disney does not allow characters into guest rooms. No, there are no special privileges in the parks for resort concierge guests. The AP rates are usually seasonal.
Slower seasons are more likely to have it and the discount can be substantial on the right days.
Remember to be flexible with your dates, as availability and pricing can vary widely by just arriving a day earlier in some cases. From 8pm to 10pm they serve desserts and cordials. It is available now. It's very tough to answer that. If I was forced to choose one over the other, after this experience, I think I'd be here.