Datapoint:
5/4/13: UA 276 R/RN=7.. T-96 passed, CPU requested box appears, still R/RN=7. No one got upgraded.

Upgrade not running at the window when there is R space is getting tiresome and quite frankly it is very annoying. I would like to have the first dibs at selecting seats to ensure my companion and I are seated together, not being processed at the airport or at the Gold window when the system randomly scatters everyone around in the F cabin.
Upgrade not running as promised at the window has been happening to me a lot lately. I don't care if I get the upgrade or not, just run the damn thing.