Hi,
I've had mine about 6 weeks now, a 35i, DCT and m suspension. The DCT is brilliant, smooth in normal and really fast in sport. Maybe its just suits my driving but I havn't needed or seen any benefit from using the paddles. I did want the car with the addaptive suspension partly because TG said I should have it and partly because it makes sence - softer for long motorway drives firmer for my favourite blat around the back roads. Admittedly I didn't try one without it but it does work and you can feel an imedediate change when you press the sport and sport plus button.
Paul