I demo’ed the Minimed and Dexcom before choosing the Navigator. In talking to people on TuD, I’d say that everyone who switches to Dex or Nav from MM has a better experience.
I found the MM to be an evil harpoon. It was so inaccurate and painful (in my back right hip) that I left a tear-soaked voicemail on my CDE’s phone, telling her there was no way I’d consider CGM.
Then a few months later, I agreed to try the Dex for 7 days. I liked it. It was more accurate than the MM after the first day of wear and much more comfortable (wore it in my lower abdomen). I couldn’t feel it. What I didn’t like was the lack of features on the receiver (graphs, statistics, events, etc) and the short range of the device. If I wasn’t wearing the receiver, it lost my signal. I couldn’t even get the 10 feet they claimed for it.
I started the Nav about four months after that and have nothing negative to say. I can leave the receiver in my classroom and walk two classrooms over to talk to a colleague and it will continue to read the data. I can have the receiver in my purse in the kitchen and go out to the mailbox and not lose data or have to reconnect. The accuracy is spot on after the ten hour warm-up period and throughout the wear, and it’s easy to insert/use/etc. I love being able to mute the alarms, flip through screens of records about my standard deviation, lows, etc. I love that it has a built in meter for calibration so I don’t have to carry a meter. And I like that it uses the same strips and software that my Omnipod PDM uses.