i have both and LOVE it! i tried the minimed CGM during my trial at the endo's office and didn't like it. the sides weren't completely taped down like the dexcom sensor is, and i had to wear a tegaderm patch over it. not comfortable at all, plus it was a royal PITA to clean the residue after removing it.
unfortunately, due to my insurance coverage changing, i can no longer afford the pods. i'll miss the tubeless feature, but i am still sticking with the dexcom.