Dan, I would run to Dexcom without passing “GO”. Now I’m going to have to justify this recommendation.
If you go to the Dexcom group on this site, someone just posted an extremely detailed report of his experiences with both. It was too complex for me, especially since I’m totally in favor of Dexcom. The conclusion on page 19 comes out in favor of Dexcom for accuracy and ease of use. Medtronic wins on integration into the pump. http://www.tudiabetes.org/group/dexcomusers/forum/topics/report-ana…
Here’s a comparison by a European user where the Enlite has been available for a much longer time: http://www.insulinindependent.com/2013/07/dexcom-g4-vs-medtronic-en…
Here’s one more: https://forum.tudiabetes.org/topics/medtronic-enlite-vs-dexcom-g…
I don’t have links handy for everything I’ve read on early experiences with the Enlite, but many have not been favorable.
Most G4 users seem very happy with the system. On Twitter sometimes we post photos of “Twinsies” where our meter and CGM match up exactly. I’ve had 4 or 5 this week. This is a blog post I wrote in June about how often I bolus based on my G4 readings: http://testguessandgo.com/2013/06/13/to-dose-or-not-to-dose-2/
The G4 is not perfect, but I rarely have readings that are totally out in left field. I use each sensor for 2-3 weeks. I have good insurance so I don’t extend the sensors to save money. I do it because they continue to be very accurate.
Hopefully you’ll get some other answers, but my advice is to go with Dexcom.
