Shame the Omega does not get the excellent DSG 'box like most VW group cars...
No sure I'd fancy the reliability (or lack thereof).
It's a big, heavy, over-complex device, IMHO.
A 6 or 7 speed conventional automatic box would probably better it in terms of comfort and, certainly reliability IMHO. Only possible advantage might be fuel consumption although with plenty of ratios a conventional autobox could lockup much earlier than the Omega's does.
What use is a bit of extra economy when the thing keeps grenading?

Faster than a manual? I don't know. Give me a decent manual 6 speeder with the right choice of gear ratios... It might make the changes quick, but that doesn't mean it is quick.
Does the DSG box have any motorsport pedigree? Not sure, just asking, cos that often speaks volumes about where a component is on the performance versus reliability / durability scale.
Kevin