I rented a Roubaix with some version of this and was impressed. At some point during a 45 mile ride I realized my hands/arm weren't fatigued and I remembered the shock. It was a sweet ride and makes me want to get something new again. My current ride is a 13 years old Kuota with Chorus 10, and it was a really hot bike when new, but it sure isn't new anymore. Aside from the FS, the 11sp wide cassette and disk brakes were a big improvement, and even though I've always disliked Shimano shifting, this 105 felt better than my Chorus does, but it is much newer too. I can only imagine what Ultegra and DA are like, or DI2, but then again Campy hasnt been sleeping either,