I've been type 1 diabetic for 45 years and started to use the Libre 2 sensors a couple of years ago. I think they are well worth the cost although I think it is expensive. I went for my annual retinopathy check the other week and was very pleased that for the first time ever, there has been no signs of any retina damage and as a result of having two consecutive clear results I now only need to be checked every two years so thats some good news. My current A1c levels are 43 mmol 6.1% and I am still learning more about how my glucose levels fluctuate especially overnight, so hoping for even better control in the future.