Installed the Shimano FC-6800 50/34 to replace my Dura Ace 53/39 crankset. The quality of the Ultegra is superb and the installation and setup was easy. I am impressed with the quietness of my drive train as well as very smooth shifting. The few grams of additional weight were not a factor compared to double the price for Dura Ace. I can wholeheartedly recommend this crankset for your road bike repair or upgrade!
Dave F