My preliminary take: I like it. The pluses so far:
-UI is smoother and more responsive with a more modern look (opinions vary).
-Menus are arranged for ease of use and require less scrolling.
-Text is bolder and easier to read (e.g PRND) and the speedo is closer to the edge, more in the driver's line of sight.
-Apps are easier to find.
-The phone function is easier to navigate.
-The music streaming menus are much improved.
-To manually turn on the wipers now requires one less step to set the speed: press the stalk and set the speed. Before, I had to press the stalk, turn it on, then set the speed (or use voice commands). This is a big one for me. For those that don't use the stalk, select the car icon and it's right there in the middle.
-The blind spot feature works better than expected although the positioning of the video is up for debate. I'm OK with where it's at, but some might prefer it more to the right.
-The subwoofer is finally adjustable.
Some things that will require an adjustment period:
-Tire pressure info is now in the service menu.
-Other data visible at a glance before are now in submenus (e.g phone / wife signal info).
Some wants:
-Larger or adjustable map screen (it seemed like they've increased the size a bit, but not to what it used to be). Maybe it's adjustable now and I haven't figured out how to do it yet.
-I'd like to see bird's eye view and rear cross-traffic alert implemented. IMO, the rear camera has a wide enough field of view to allow for it.
-It would be nice to have the ability to pin cards / windows in place on the screen. So for example, if someone wanted to keep the trip info up, they could hold and drag the window to the screen and place it in predefined areas. Also, making the size adjustable would be helpful.
Overall, I give it a thumbs up and consider it a good step in the right direction based on my use case. Those that use and prioritize other features may not think so, which is understandable. I see it as a work in progress.