I tested MyQ integration and here is what I found out:
1. It will beep upon closing the door when it does not detect the presence of the car in garage or in the vicinity of the garage, likely based on GPS location of the car (and not by internet/cellular connection as I previously thought).
2. The opener unit beeped when closing because "Set Garage Location" was not set.
3. The opener did NOT beep when I set the garage location, both when "Auto-close when leaving" and when manually closing once inside the garage.
4. The closing or opening sequence cannot be aborted using MyQ, once started. You can interrupt closing/opening with HomeLink.
5. Poor internet connection causes delay/lag in action.
6. There was a conflict (with potential for problem) when Auto-open/close is set on both HomeLink and MyQ.
MyQ fired Auto-Open at 100 feet; then HomeLink fired auto-open at 70 feet - cancelling the action.
7. One MyQ subscription can be enabled on multiple cars. I was able to on 3 Tesla.