What to expect when the dealer opens a "PuMA" case?

[AthensGuy]

Well I took the X5 in for a busted expansion tank, random airbag light (passenger seat occupation sensor mat), leaky valve cover gaskets, and the dealer happened to notice the alternator was overcharging yesterday (thank God for CPO!!!!). Along with a transmission issue (it slams from 1st to 2nd when under light acceleration, it will not do this when there is moderate to heavy acceleration). The SA told me that he nor the tech had ever come across this issue in the X5 (not sure how true this is), but they noticed what I was talking about and it was easily reproduced. Anyway he told me they would be opening up a "PuMA" case with BMWNA to find a solution for the transmission issue. My question is; has anyone had any experience with the PuMA procedures and were you satisfied with the outcome?