1.3hp is roughly equivalent to 970 watts (1hp =746 watts)
Prior to this model, the most powerful KitchenAid Stand Mixer - also a WS exclusive and still available for purchase - was the 610 series. That model has 590 watts.
This is a big jump in power. And with that comes a concomitant jump in price. ($400 -vs- $550)
Does anyone own one? If so, pleae share your thoughts.