Yes I have the 2013 APD. I demoed the regular and the GT and I preferred the regular length.
I'm playing with Yonex PolyTour Pro 125 @ 48lbs and it feels good right now. I get more spin and power with the APD on the serve as well as more control. I did have to get used to the speed of the racquet because it does swing a little quicker so in the beginning I was framing a few balls but it's settling now.
When I do switch back to the BLX I find myself playing slower in order to keep the balls from sailing on me. I do notice that I can get more spin with the APD but the BLX is definitely nicer to hit off center with in terms of comfort.