I am so glad that I have GE now. The past 3 out of 4 times I arrived into US -- PHL, PHL and CLT -- APC kiosks were either not working or they were reserved for US citizens only due to high volume of pax arriving. The only blissful experience was in DFW where they were hardly occupied and I was done with them and through customs with the Mrs in 5 minutes tops. MIA the couple of times before that was not bad either.
Worrying about missing your connecting flight when doing an INT-DOM transfer should thankfully be a thing of the past