My daughter who is 8 years old is on her third sensor. She finds it brilliant! Gets rid of all the finger pricking before and after PE, after meals, at bedtime, middle of night etc etc. Seeing the daily graph and when she goes out of the target area is useful too, we have been able to tighten the insulin regime as a result. We went on holiday for the October half term, a lot of walking, swimming etc, and it is brilliant just to quickly scan her rather than ask her to wash hands, sit down for finger pricking and so on. And the best bit is the arrow showing which way she is heading. The Libre is not 100% accurate but has made a big difference. We have also discovered that the sensor can take hours in the sea/pool if you cover it with Tegaderm which also stops it from coming off.