I'm just over 48,000km (30,000 miles) on my 2022 RS and only issue was a bad Sim card for the Nav and the black chrome on the rear bumper insert started peeling off- twice.
I went from my 2013 Nox V6 to the 1.5 and the transition is not as bad as I thought it would be. I have slightly adjusted my driving habits and am pleased with how it reacts. No trouble merging or passing - of course on a 2 lane highway I do need to leave a little more room when passing but not THAT much. Keep in mind that for 2023 they made slight changes to the 1.5. 2022 and below are 170 hp, 23 gets 175 hp. Some reports I read say it is slower somehow - makes no sense but time will tell.
I don't have many steep hills around here but I often head down I-81 through NY state and there are some pretty steep grades between Syracuse and Binghamton. My past 5 cars, all V6, would downshift on certain inclines. To my amazement the 2022 1.5 does not downshift or lose more than 1 mph. I've made that trip 3 times with same result, the 1.5 has not downshifted once on the highway while cruising. Ever. Pretty impressive if you ask me.
While I loved the V6 and thought the gas mileage was excellent for an engine that peppy, I am loving the 1.5 mileage. I'm getting roughly 5mpg (they calculate on liters/100kn up here for some reason) more than the V6.
One caveat - last year I read here some folks recommend premium gas with a turbo. When I realized Costco sold premium for about what other area gas stations were selling regular for I started using Costco premium (top tier). I noticed a real jump in power and gas mileage. That was when I was at @ 8,000km could the big jump possibly be related to engine break in? Maybe, but I am not inclined to use regular to find out. Not messing with a winning combo.
When I test drove the 2022 RS I thought the slightly stiffer ride would bother my wife who complains about any little bump in the road. I was wrong, she loves the way it rides and says she likes it even better than the 2013, which we both loved. For winter I have 17" snows and it is a bit softer ride, but my wife doesn't even notice when the 19" are on in the summer. My avatar pic is the 17" alloys I run in the winter. I prefer them over the black chrome 19" that the RS came with.
I had no choice to purchase an LT or Premiere last December, they were only making RS and the 2013 front differential gave up the ghost after @ 350,000km. I had ordered a different RS with less options but in hindsight I am super happy my 2013 died when it did and I was "forced" to get the fully loaded RS. I simply could not wait 6 weks for the cheaper RS. The 2013 was pretty loaded so I did not have to compromise when I ended up with this one. I have to say after 13 months I am super pleased with the RS - my first brand new car due to the amount of driving I did, I drive less now and still have burnt through the warranty lol.
To both our surprise, we love the 2022 even more than the 2013 so far, and that's saying a lot. It does have the auto stop button to turn it off, I "think" I read that the 2021 has the button as well. I'm fairly certain the 23 and on will have the button but ya never know.
Best of luck, hope that helps.