I dunno. The first car I drove with any of these driver assists was my sister's 2015 Honda (CRV? I think that was the model). I thought it was fantastic. It kept station smoothly behind other cars. The lane-keeping was great on the freeway, and easy to turn off on surface streets. I thought it made me several times safer as a driver: I didn't spend as much attention on the lane markings, or the back of the car ahead of me, so I was able to be far more attentive to cars around, or upcoming (potential) hazards.

When we looked for a car a couple of years ago (and, more recently, when I've driven rentals), station-keeping was certainly no better (and in at least a couple of instances, definitely worse), and as noted by everyone else in this thread, the whole system is so darn annoying. Of the beeps and warnings which are not false-positives, most draw my attention to things I've already seen, so they become either distracting or ignored, which is a net safety degradation.

I think 2015 driver-assist systems (or Honda's, at least) worked better.