Worth it? Yeah, I'd say so. It's a nice lazy feature. But the feature itself is lazy (seemingly moreso than other FCA products I've owned)... meaning, it drives me mad how slow it is to respond to changing situations, and the range is pitiful. Seriously FCA. A full redesign with all new hardware for this system and it performs this bad? Give me a break.
Say the vehicle in front of you stops. It will creep up slowly, and take a good 5 seconds longer than a normal human being to finally stop creeping and come to a halt. Then you go to resume when they start moving (either pressing gas or resume button). Again, it is PAINFULLY slow. Makes you sit there looking like an idiot for a good 3 seconds before it decides to barely start moving. I end up flooring it half the time in frustration. This makes NO SENSE considering it is a freaking computer system with range detection capability that has far more insight and speed to detect what is going on than a person does. And yet, it behaves like a 15 year old behind the wheel for the first time. Aside from that, my other complaint is the range. I think it should be able to detect vehicles further out. And the follow distance settings are a joke... should be named ***-rider close, stupid close, close, and kinda close. 4 levels of adjustment and the furthest is barely at my level of comfort. That combined with the poor range makes it stop aggressively if a vehicle in front of you is slowing down, most of the time anyway, making for a jerky/not so smooth experience. I want to be further from the vehicle in front of me. Who at FCA thinks that is a bad idea? Tailgating does not get you there any faster. Give me a larger safety buffer, and keep my truck cleaner/damage free from the car in front of me kicking crud up.
I've had this system in a few SRT and Jeep products and while it wasn't much better in them, it seems worse in these 5th gen trucks (I've owned a few of them and they have all behaved like crap). I also have plenty of miles with other brand systems, Tesla and Volvo of particular note. In short, I hate it in this RAM. But I wouldn't want the truck without it, crappy as it is. Lane Sense another massive steaming pile of crap, but I appreciate the little bit that it does work.