As my current vehicle was going in the shop for nearly 2weeks and I naively hoped that the earlier end of my EDD would mean I could go straight from rental to my own Y, I took the opportunity to rent 2 different MYs from hertz for a week each. just turned in the second one (20s) today.
The difference is definitely noticeable. cars were the same year LRs. 19s ride much smoother, had several comments from passengers who rode with me in both and quickly questioned why the same ride was "rougher" than last week. Granted, Mi roads suck but we were travelling the same or similar quality surfaces in both so it was a "fair" test.
People talk about the 20s looking better and that being worth it, but I don't see it and the passengers didn't even notice a difference in vehicles until we were underway, hitting bumps. I'm not saying the 19s make you float on a cloud, tesla suspension is definitely cheap as hell but the difference on Mi roads was immediately noticeable by myself and 3 different passengers
I'm buying the Y primarily as a work car as I can pile on a thousand miles in a week some weeks (actually did these past 2weeks for a total of 2088miles combined), and gas isn't getting any cheaper in the long run. The comfort gained for long days on the road is more than worth the entirely subjective aesthetic drop IMO.
edit: if I can slap 18s on mine when I get it, I will lol