Hi! Has anyone used g6 yet? My 16 year old son has had diabetes since age 7. He’s been using g4 for several years, and we are considering upgrading to g6. Is it shipping out yet? For those, if any, who have used it, what are the main advantages of the new system? He’s interested in the ‘no calibration’ feature, but we would be sad to lose the longer sensor life we’ve been getting with g4. Is there an improved algorithm? Also he doesn’t have a phone, so would be using the receiver. Is the newer one ok? Is it durable? I know practically nothing about it (i let him do most of the research, haha). Do you think it’s worth it to give up longer sensor life for the other improvements? Any thoughts about this would be appreciated! Thank you!