If it makes you feel any better, infotainment is getting massively updated for newer models. 2019's get a new infotainment UI and there may be more coming. I'm only sharing what can be seen in showroom cars right now, but let me tell you it's a massive upgrade. IDK about CUE, my time in Cadillac's hasn't been bad wrt infotainment.
The bluetooth connection in my FiST drives me bonkers - once connected it's fine... once connected.
One other quirk I've noticed when comparing Ford to GM vehicles is the turn signals - my FiST feels like I need to 'push it all the way to the spot' for the lane-change indication, and my gf's Cruze (and all our other cars) seems to be 'push it out of centre' for lane-change indication. Which ends up causing lots of lane changes without signaling in my FiST.