My experiences with VW's DSG echo what has already been said about DCT transmissions vs traditional autboxes: what you gain in directness, ecnonomy and shift speed, you lose in overall smoothness and low-speed jerkiness.

Though it has to be said that the AMG MCT is not a true DCT, still, if it is jerky at low speeds then that is the inherent downside to such automated/sequential transmissions.