I just discovered this thread (okay, I'm still earning my ears) but had to comment because we have been fortunate enough to stay Concierge at all Deluxe Resorts except AKL. The IPO usually does all of the pre-trip work and there are many hard-working people behind the scenes (4-6 like stated seems accurate) making things happen. Some of them really do take "making magic happen" very seriously and often check up to see how each of the ressies they made turned out. We have tried very hard to make sure to give Gift Cards, or send baskets when we return. It has never been expected from them, we just like to say thank you for great service. Amazingly, I think they remember us when it is time for that next trip and there are times we get wonderful views and special care in return, so its a nice circle.
For us, the IPO service at Poly has really been great lately, and worth every penny for the service and the Concierge (one of the best lounges on property).
As far as excellence, the IPO at Yacht/Beach has gone above and beyond so often for us, its impossible to describe. Spa, boats, special room requests, ressies, last minute changes, we've thrown it all at them. I have discovered calls made to my DH for gifts to be put in the room for birthday or Mothers Day in order to make my trip more special, and all kinds of advance shopping and planning. And suggestions for new places we might not have checked out.
Given the opportunity, these people can really offer great suggestions. My advice for anyone paying Concierge is to utilize the services of the IPO as soon as it is possible to start your bookings (i.e. the 180 days), the more advance notice they have, the easier it is to have everything work out as you'd like.
My final comment about all of the Disney IPO and Concierge is that while they can do a great job, they cannot control everything -- weather, crowds, etc. so let them help you and then enjoy whatever happens from there as best you can. And no matter what, you can always reach for chocolate from the lounge!