We installed this a couple of weeks back. Unfortunately I only had time to do a quick test of the UI and wireless Android Auto. Hope this is useful in some way.
This was installed in a Mercedes-Benz C-Class W204. Previously we installed the Kenwood DDX419BT about a year or two back. This time customer wanted wireless Apple CarPlay so he went with the Pioneer DMH-A5450BT.
This unit sounds amazing and I have no complaints when trying out wireless Android Auto.
DMH-A5450BT – https://www.fasmoto.com/pioneer-dmh-a5450bt