Yeah, apparently driving style is a big factor. If you tend to brake hard using the conventional brakes, you won’t get much benefit from the regenerative braking. But if you learn to do “one pedal driving” where you use the motor braking that happens when you let off the gas pedal, you can conserve dramatically more energy.
I figure that the computer does a better job of using the exact amount of energy to keep the car moving at my desired speed, and instantly compensates for changes in the grade of the road and the speed of traffic better than I can.
-PJ