I have smart air - I have only found it useful in that the bumper curb in my garage ever-so-slightly rubs the bottom of my bumper. So I have it automatically raise in my driveway - it is geo aware.
Beyond that I have never moved it from factory default which is to lower the car at 100mph. I don't drive 100mph...
Raven models have adaptive suspension which may be worthwhile - not sure.
Bottom line smart suspension would be nothing I really miss.
Not the Tesla ones! (which I think are Continental branded) I had to get one changed over when the car was only one year old. The service guy said to me they make sure they always have spares on hand (what does that tell you?)+1 for air, I heard the air struts are more reliable than regular ones.
Interesting, I will try it. My last car was a Jag XJ8 an it lowered itself around 70 and it TURNED UP the music volume.Why wouldn't you lower your speed to at least something like 60 or 70? Mine was set at 100 as well and I changed my to 60. I felt the driving much better after that. Worth trying IMHO.