It is true that it's very accurate. I was on a trip that predicted 22% battery on arrival, and I had 21%. The last 5-10km were mostly descending down a valley,

It is true that it's very accurate. I was on a trip that predicted 22% battery on arrival, and I had 21%. The last 5-10km were mostly descending down a valley, so lot of regeneration. Thus, when I arrived, 22%, as predicted.