Non-DCC '17 SE here. I've been running Eibach Pro springs and their rear swaybar since ~8k miles (~23k now). Rides fairly smooth (not as smooth as my wife's stock 2020 GLI of course) and handles great IMO. I could probably go with a larger rear bar, but it's not worth swapping it out IMO. I mostly daily drive it (well not really.. I put ~2k miles on it last year) and occasionally do track days at the nearby circuit track and she performs very well (a lot of that has to do with tires too though).
Once my stock struts start showing signs of wear, I plan to upgrade to Bilstein B8s.