I dont have experience of the 6 speed DSG, but I do of the 7 speed on our Polo GTI. If I do place an order for a Mk7 Golf, I think it will be a DSG.
My current car (Scirocco) is a manual but after driving a DSG it can feel laborious to change gear! As others have said, it does have its qwirks though.
In normal 'D', it changes up, far faster than you would in a manual, you will be in 6th before you know it. On climbing hills I find it changes down one more gear than I would manually, forcing me to override it, otherwise the engine is revving harder than is necessary.
Another thing I have noticed (on the 7 speed). Having just been up hill, the box then seems slow to select 2nd, again prompting for an override otherwise the engine revs too much.
These are minor negatives though, and the positives are still enough for me to decide that a DSG is what I want next. Using the paddles is great and gives you a real 'F1' sense of driving.
I