Slightly calmer and slightly less urging vs DS, but the ZF gearbox is pretty amazing. It shifts at least as good as the DS if not better, and I think even a little faster in sports mode. Engine blip on down shift and drop on upshifts are always well matched.
The inital surge from stop at the first touch of gas pedal gets some used to, but other than that, no more worry running into stop n go traffic and none of the jerkiness that can be experienced some times with DS.
I am not a rear bias weight fan, i like it 50/50, and the auto makes it a step closer to that. It's perfect for anyone who wants a bit more relaxed in traffic driving, and even with the automatic gearbox, the big heavy sedan is nimble and sporty that nothing else in the segment compare.
Having said all that, my heart is still with DS 4porte.