My sticker at ORD allowed me to get into the blocked off area that has the GE machines. It was blocked off because as I enter a Pre-Cleared flight from I think Dublin or Shannon landed.

With my one experience so far was good. I did have trouble with the machine reading my passport but I got it to work.

Ohhh and to add to the list of airports that don't have GE. MDW didn't which would have been nice since when my flight on Porter landed only one Officer was in their booth to process passengers. Which with me being in the middle of the of the group off passengers it took about 20 minutes to be processed. And I have an off topic question about that. After I was processed the passport control officer kept my form and there were no officers at the exit or anywhere else past passport control. Is that normal for smaller stations?