I came from a discovery sport and the GLC build quality is a lot better, shame you haven't got the intelligent lights they are brilliant and knock spots off the adaptive xenons in the DS.I'm coming from a 2013 Land Rover Evoque. I usually replace my car every 3-4 years and jump from one manufacturer to another. The following are the vehicles I've had the privilege to drive:
BMW 5 series
Toyota Supra (Best sports car for the price)
VW Toureg: Excellent vehicle with advanced electronics way ahead of its time when first came out.
Infiniti Q35: Nothing special
Audi A5: Beastly car.
LR Evoque: Decent SUV. Exceptional styling and customizable.
I've only had my car GLC coupe for a few days but this car pays attention to detail. Electronics are much better than the Evoque (better rear-view camera, onboard computer, and internet) and the ride is smoother. This car has everything my loaded Evoque had minus adaptive headlamps, but the quality of this vehicle is better in almost every aspect. More solid, better ride and better intuitive electronics. Gas mileage also seems better. Only negative would be that this GLC is not as capable for off-road activities (not really a concern for me). The only other issue I have noticed is that this vehicle doesn't have the customizable experience or at least the few forums I have searched doesn't have many users reporting upgrades (interior LED lights, Nerf boards, etc.).
So far, very pleased with this vehicle.