Hello and welcome. So my previous car was an Audi S4 (for 5 years) and of course fit and finish was top notch and (not to sound like a
badge snob here) going into a Kia I was concerned how much of a dropoff there would be there. I can say 1 year in its not been much. When I first got my GTS I noticed a squeak from the A pillar (something I think Motor Trend even noticed in their tester), but it must have been due to the fact it was a brand new car and it just needed to "settle in" because about 6 months later that noise disappeared. Only other negative was I had a recall for a wiring junction box (think that's the verbiage lol) but it caused no noticeable symptoms on my end and it was taken care of no prob by Kia. Those are literally the only 2 things I could knit pick my car on. I love my GTS and would pick it over my old S4 11 times out of 10.
It is like a "swiss army knife"....it does everything really, really well. Looks, power, comfort, functionality, and even cargo room is all great here. A few months back took mine on a 2000 mile roadtrip with 4 peoples luggage and the car was perfect and a true GT the whole trip. And as a bonus I had more compliments for my GTS in 1 week than I did in 5 years of owning an S4...which is always cool. Hope this helps and good luck with your search!