Well, it took three business days, but I got my MCU 2 retrofitted MX back yesterday. Love it. I’m seeing cones and garbage cans now. The only issues (of the first-world type) were having to retrain my HomeLink and fix some of the settings that may or may not have been a result of the changeover. For instance, my seat position was not in my saved configuration but I’m guessing maybe the tech moved it and hit “save” by mistake. Also, my maps are stuck on performing an update, without which I cannot do the “stop sign/traffic light control. Even though I’m connected to Wi-Fi, the progress bar hasn’t budged beyond about 10% in the past 24 hours. But the responsiveness is amazing. When I hit the fast forward button to advance to the next song, it actually changes immediately instead of the multi-second lag it had with MCU 1.