I've had an Automatic first generation adapter installed on my 2010 Nissan since right after you introduced it. Although I long ago stopped trying to use it for trip tracking and I don't think it works well any longer on reliably connecting to my iOS 12 running iPhone 6, I still keep it plugged in and am very satisfied with the value I still get out of it in reading Check Engine Light codes. It continues to help me reset for a known anomaly code that pops up from time to time, as well as a code that represented an issue for which I needed to get to a technician ASAP to prevent permanent engine damage.
I've now bought a new 2018 Chevrolet Silverado and am considering adding Automatic Pro to it. However, I'm reading on a GM owners forum that having Automatic plugged into the OBD-II port all the time will prevent GM's On-Star monthly maintenance/monitoring email from being successfully generated. Can you speak any further about this potential incompatibility?
I've also read a number of instances where Automatic failed to detect a crash, even when air bags deployed. Since I'm considering Automatic to get rid of the ridiculously expensive On-Star safety service, this is an issue for me.