I went from. 2018 Cannondale Synapse to 2020 Cannondale Super Six ( non high mod ). Swapped over my Ultegra Di2 and Campy Bora tubular wheels. I’m very happy with it now. On the aero aspect once I crest a hill the pickup in speed is dramatic. It is claimed to be very aero and judging from my experience it is indeed. Descends like an amusement park ride and is a delight to climb with either sitting or standing.