No I don't think you really need to change your driving style just because its DCT , its just a bit different from conventional or CVT not in a bad way but in its own way , like CVT is a bit different from conventional automatic.
You automatically get used to the DCT once you start driving it regularly.
I bought it because the price to feature ratio and the quality you get is insane, for me with these features and interior and overall quality this car won't feel outdated for another 5 years , and if MG get their license to sell CKD cars MG HS will be more expensive than Tucson just to get an idea of price