So far, so good.
It's a bit too early for me to rate this device, but I'll provide some initial thoughts. The App is pretty good. The device works. The service works, I guess. There are a few things that I'm not thrilled about. First, the documentation says to charge the device for 8 hours before using, but doesn't tell you how to accomplish this. Does it charge when the car is off or only when the car is on? Does it apply to the OBDII dongle or only the GL300? There are no periodic "heartbeat" alerts or daily e-mails that confirm the status of the device. I can't tell if it is working or not, unless I drive. Right now, my car is not being driven much (due to the Covid-19 pandemic). I'd like regular alerts or some way to "ping" the device to confirm that it is still working and the battery is still charged. I've yet to confirm that it doesn't discharge my car battery when the car is not started for several days (like my previous device did).