Not only is the Dexcom doing a great time most of the time (right now I'm wearing an wonky sensor), but it is also does a lot of other good things.
First, it is an interesting feed back loop. One thing I've noticed, and I'm not the only one, is that the better you manage your diabetes, the better the Dexcom works. Thus, just by using the Dexcom alone, you tend to manage your blood sugar better. Someone needs to do a clinical trial and see if we're right.
Second, it opens up some interesting conversations. Mostly on the line of, is your diabetes THAT bad. No, it isn't. I just like to see the data and manage it better.
Remember, it opened up a conversation between my self and my student I've posted about.