vic1212, I have a 2016 Envision Premium II w/Driver Confidence Pkg, bought new in Aug '16, now with 6,200 mile on it. The DCP offers adaptive cruise control, surround camera, and front auto braking (not just an alert). For me well worth the optional charge. The ACC works perfectly, and I use it a lot even on local freeway driving in the DFW area. Premium II is required for the DCP. It adds, vs Premium I, standard NAV, Heads-up Display (also perfect), driver seat adjustable thigh support, ventilated/cooled front seats (they are really cooled, even without A/C operating), and HID/articulating/auto high beam headlights.
FYI...there is a new Terrain being announce at the Detroit Auto Show this month. Based on the Envision and new Equinox frame/engines.
Feel free to ask any questions...FYI we also own a 2015 Ford Escape with the 2.0 turbo engine...similar to the Edge, but now their 2.0 has been improved. My understanding the only problem Ford had was with earlier, small turbo engine (1.6) in the Escape.