As far as I can tell, there are some faulty sensors about but in my opinion some people were expecting the system to correlate with their meters. I'm testing as much as I normally would and using both sets of data for trends and information.
I knew that my overnight basal wasn't correct but when doing a fasting overnight I would often go hypo. When I had a CGM from the hospital for a week this showed that this wasn't correct, same with the libre, have altered overnight will see what shows and then do overnight fasting in a few days time. Hoping I don't react to the adhesive! I haven't got any freestyle test strips, probably need to buy some