I have the Dualogic. I drove a manual eons ago and hated it, which put me off driving for 25 years. I re-learnt in an automatic this year andno whave the dualogic, but it is different to a fully automatic car. The gearbox is actually a "proper" gearbox which can be used in auto or semi manual mode, just no clutch pedal. There are 2 possible downsides to this. First you dont get the "creep" you get with an auto, which is actually quite handy when manouvering as you dont need to use the handbrake much. Also hill starts ditto. With the dualogic you have to use the handbrake, as in a manual, but you loose the benefit of clutch control because you dont have a clutch pedal. So i would think if you had only ever driven a fully automatic car, the dualogic would be a bit of a challenge.
Having said this, I am getting used to it. Its a bit slow to change down on a hill - you really have to welly the accellerator to get any speed up. But if you've driven a manual land cant be arsed with it (like me!) then its fine.
I did read that its a bit more fuel hungry. Not sure if this is rue as I have nithing to compare
Julie