I can count 6 families that I know of, but is there more? I honestly have not used it as much as I thought I would at this point, but it is summer and I have not gotten away from them like I wish I could!!! But I love that I am sitting here at the computer and "know" that my dd's CGM is reading 125 as of 5 minutes ago and while she could be across the world she is at Grammys house 10 miles away. left her at the tutor today and "knew" her CGM number at pickup, "OK honey, can you please test/correct and cover 40 carbs?", so many intrusive steps skipped when her BG was 183 and I knew she would be wanting to have a meal. NO, it is not perfect. But, better than a few weeks ago.