I have been totally unsuccessful with the G6.
First one, the transmitter failed after 4 days. Of course, it took the sensor with it. Dexcom Support was very understanding and overnighted a new transmitter and sensor.
The second sensor started being noisy and had dropped readings for two nights in a row. Today it happened to miss a serious low that I did too. Again, Dexcom Support was great. Another sensor is on its way.
I have worn a Dexcom every day for 14 years and this is the first time anything like this has happened.
I sure hope this one works. Thanks for letting me vent.