Jonnyfalk,
I have to say having been a DS4head for over 2 years now it is one of the best and worst cars
I have had, and I'll tell you why....
The look of the car -crouched tiger ready to pounce- was ahead of its time and still looks good 4 years on, as many models aim to copy that SUV stance.
It has lots of kit and the sport is loaded with options.
The power from the 163bhp (160 metric!) same engine shared by PSA with Ford, Toyota and others is great. Not the fastest 0-60 but with 360nm torque one of the torquiest standard road cars, making gear flexibility and in -gear acceleration brilliant - more torque than VW equivalent engines.
Another thing with the 2.0HDi is it can easily be chipped / reprogrammed to produce around 200bhp and 430nm torque so can be a balistic missle if you like!!
Downsides are the more tech, the more to go wrong and the car does have glitches linked to Emyway system.
Also the rear seat room, non opening rear windows and access through winkle picker doors not great for a Ford Focus sized car - compromised for good looks I feel.
I would not swap mine until it gets to costly to maintain, I love it....