I have a 2018 Toyota Prius and turned off the lane departure notice because it did get a little annoying. Everything else I love! Blind spot monitor is great, and the cross traffic sensor really comes in handy backing out in busy parking lots. It actually saved me from hitting an idiot who drove passed me and then decided to back up in the parking lot to try and get a spot.

I have Subaru Eyesight and can turn off the features if they are annoying me. It will occasionally flash the "obstacle detected" warning the precedes the Emergency braking at times where there is no real danger but that's not a huge deal to me

I have a Mazda that senses in my blind spot. I can turn it off if I want. I love it. It sometimes senses fencing close to the edge of a road, and it also beeps if I move over a lane and it thinks I want to move over a second and there is a car there.

But it has also prevented accidents. My main complaint is that my older car doesn’t have it so I am a menace driving that car now!

Have you had good/bad experiences with these? Do they ever get in your way by engaging when not really needed?