We have a 2020 Soul S. First of all let me say that the car only has 26,000 miles on it. It was built at the tailend of the "ring" issue (poorly built piston rings allowed some engines to fail). Testing for this issue after 10,000 miles via an oil eval kit proved we didn't have "that" engine. There have been kinda frightening stuff regarding the "kia boys" and there were a couple of recalls on software. Until 4 months ago, all was well. Just before our 5 year or 50,000 warranty ran out the steering assembly failed. After a backorder, we were without our car for 101 days. But...our local relationship with a reputable dealer gave us a Forte to use. Saying all that....bottom line: Use the best oil you can afford, only use Kia parts for oil changes, or transmission drains, etc. Watch how much oil you put in...too much is worse than too little (either use the dealer for this service or KNOW EXACTLY WHO, WHAT, AND WHEN...of your maintenance...document everything), use top grade fuel, Shell, etc., as well as Techron fuel cleaner every 5,000 miles, read all the time about issues for your model on YouTube and here, and finally remember: this is not a Porche...it is a moderate priced Asian car...not bullet proof. The transmission is quirky...but. it will do well if don't beat it down. I've learned how to work with it and it does great. On a short trip this afternoon, my 2.0 Atkinson plus the IVT pulled me and my family out of a dangerous situation...it can fly if you take care of it. IMHO
PS Don’t use the "scheduled maintenance" as the Kia bible...always ere on the very conservative side of everything.