Welcome SPS! Oh my goodness, where should I start. I’ve only had my Dexcom for a little over a week, and would never choose to be without it again. Number one for me is safety - the bottom limit on the dex is 70. I can sleep MUCH more easily knowing that it will ‘beep’ me awake if I drop below 70.(I do check all extreme dex readings with a fingerstick). I have my top limit set to 120 (you can set it as high as you want) so I can catch highs on the way, instead of already there. It has 5 arrows: straight, up, double up, down and double down. If I’m high and see a down arrow, I don’t correct, I wait. Low and a up, same scenario. It takes a reading every 5 minutes, and shows a graph for 3, 6, 12 or 24 hours.
I’ve learned so much about how my body reacts to various foods in the short time I’ve had it. I never knew I had a peak an hour after breakfast because I didn’t test until 2 hours after. Something to work on. I can download to the dex software and see average BG for times of day, so if I see a pattern I can adjust my basal accordingly.
That’s just a start - I’m sure others will contibute more!