If you shut of ATC it is only in Presonal mode. You can't disable ATC in Sport, Sport+ etc. I have it set to off, but on the track I use Sport+. I often change my settings in personal mode. Long trips without any spirited driving all are standard and ATC off. Short trips when I expect some play settings in personal mode to sport.
I wish we could turn ATC off in other settings besides Personal. I'd have ATC on in Sport+ and off in Sport, and especially in Standard mode, where you really don't need it.
I have Navi set to on. For some stupid reason this makes the ECO green dash light go on (upper screen).
It absolutely changes the shifting logic on curvy roads, so Standard mode is more like Sport mode, but w/o rev matching.
I like it a lot. After playing with it for a week on long trips that have both streight and a lot of curvy roads, I have decided to leave it on all the time.
I doubt it's a feature if you don't have navigation in your car as it uses the map info to work.
IMHO this is a brilliant feature. 👍🏻👍🏻