@CathP &
@Chas C Rather than just judge by these targets, I think it's important to wait & see how it actually works out in practise.
It is still under development so they could change before it's released.
The fact that the pump's firmware is updateable means the algorithm may be improved in future.
The vast majority of people with diabetes get nowhere near these targets. I think it's possible to get a skewed view of how well people are doing from reading forums such as this. The very fact that we read the forums, means that we are are interested & working to deal with our diabetes as best we can - many do not.