It is not the fastest shifting transmission, no, but two things improve after a bit that will never be evident in a test drive:
1) The car does seem to improve, I can only assume there is adaptive software in there or something because both of us drive the car for fun vs mpg (meaning in amore spirited way

) and we've found that it does feel peppier now then when we first got it (as we as better then the test drive car)
2) The driver improves no doubt about it - you first learn to use the throttle to smooth out the shifting if you wish, and as you drive it you simply find yourself adjusting for any delay. At least I did, I am in manual mode using the paddles mostly and I just find timing things second nature, which is pretty much what happens with any of the flappy paddle and or auto shifters we've had.
I was concerned about the slowness, shifting and hp, at first too - but I can tell you honestly, I am not any more and really am enjoying the car.