We happened to be out this way and saw the drive-thru.  I had an iced pumpkin spice latte.  I don't know what they did but it was super strong and tasted bitter.  Being that I was a mile  down the road and about to get on the freeway before I tasted it, I didn't go back.  I drank as much as I could but it just didn't taste right.  And I know my coffee and I especially know my Pumpkin Spice Lattes!  I love those darn things!!  My daughter had a chocolate chip frap and that was fine....maybe the chocolate covered up the bitter taste....but I will think twice before I go back to this Starbucks.