but it is still essentially an auto. you don't have to try and slip the clutch off the line in just the right way, you don't have to time your hand and feet at the same time so that you don't end up grinding the gears or missing the gear altogether, like if you hit the gate going from second to third). if you can manage to grind or miss a gear in a car with a dsg gearbox then you must be the worlds biggest moron. you can change at the wrong rpm (which you can do just as easilly with a manual), or not hit the shifter hard enough to get it to change, but the chances of someone actually doing that are pretty small.
just like at the 911 turbo. the tiptronic box in that yeilds a 0-100 time 0.2 seconds quicker than the manual. the computer does all the work for you. all you have to do is keep your right foot buried into the carpet and tap the shifter a few times. i bet that if you took a group of 20 ordinary people to the track with a gtr and had them run, all using the traction control, and just telling them to change at the same rpm, they would all run very similar times, but if you then let the same group of people drive a different car that ran the same sort of time but was manual and had no launch/traction control you would find that the times varied greatly.