I’ve no experience of them but there are always plenty of people selling used Gt86 Air suspension, so on that basis I doubt its much good. I assume they go back to springs.
Personally I wouldn’t want to lose my boot to all the gubbins for it and also the extra weight of it all.
Great I suppose if you’re only interested in road use, posing, #stance and shows etc But you don’t get track cars with air ride for good reason.