Opinions on Hyundai's 1.6T DCTs? Reliability, practicality etc.

I'm in a position where I'm thinking of purchasing an i30 N Line (probably a 2018-2022 model) but I'm worried about the practicality of the DCT. While I'd expect to use it to it's fullest every now and then, it will also be my daily which may include a lot of start and stop traffic in the suburbs and city.

I'd like to hear from owners of this vehicle or of other vehicles with the same engine and transmission how you've found it to drive daily specifically in traffic, the reliability, if you've had to do repairs and how much I could be expecting to fork out for repairs should worse come to worst. Thanks.