a) This makes so much more sense than the AA Five Star program. Will totally use for my in-laws traveling through ORD from small town Wisconsin.

b) looks like a BD deal with http://www.globalairportconcierge.com which also serves SFO, SAN, IAH, LAX, SEA, and BOS. Wonder why the offer is only for ORD + EWR? Also, will it be cheaper to book directly or via UA?