I have the adaptive cruise control, and for the most part, I don't use. I usually just use manual. It works OK, but every once in a while it go nuts if someone is say two lanes over and moves one lane closer, or changes lanes across you. Red lights flash on the windshield from the HUD, and slams on the brakes. I have people behind me take evasive manuevers and there glare at me like I can't drive lol. Hopefully there is a software update soon.
Where it does shine is on the interstates when you are just following someone. Works great. But on Houston freeways with people changing lanes a lot and moving around, not so much.