I will say, cruise control makes driving much less tiring. I can put on something to listen to, change up how I sit, and just zone out with my thumb over the cancel button so I’ll immediately slow and have time to slam on the brakes. If my cruise control would also match speed with whoever is in front of me and keep me in the lane, it would be even less tiring

That being said, the only way I’m using Tesla self driving is if I’m hyper alert and ready for my car to decide it wants to do some offroading