Always whack the cruise control on as much as possible but wouldn’t ever want anything fully automated - especially on a road where you can have a bit of fun.
Adaptive cruise control is all well and good until it decides a road sign or something in a lay-by is a threat and drops anchor for no reason.
You’d need to be paying just as much attention in something driverless, so apart from a bit of CC lightening the load on a motorway, it’s all a load of shit innit.