PKTucsonwrote a review of Shimano Ultegra WH-6800 Road Wheelset - Clincher on October 29, 2015
Familiarity: I've put it through the wringer
I was told to try these by a bike shop mechanic who swore by them. I bought them for $450 as demos. That was almost five years ago. I have never looked back. Their weight is comparable to carbon clinchers which cost over four times as much. There is nothing close to these for the money and durability. I ride these on rough roads all the time.
Several spokes did blow on me soon after I purchased them, but Shimano promptly replaced the wheels entirely because they determined there was an issue and I have never had a problem with the new set. I have only had the back wheel trued just recently. I weigh from 190-210.
I run them tubeless which costs more because the tires don't last as long as my previous Gatorskins, but the ride is so much better. I run Hutchinson Fusion 3 in the 23mm width which is as comfortable as a 25mm with tubes. (25mm Hutchinson tubeless fail consistently for me).
I have the LBS replace tires every six months because it is easier to mount with a compressor and replace the latex. I never get flats unless I slice a tire and then it is easy to throw in a tube. I'm going to try the Specialized Tubeless tires next because of the great reviews they got in Velo.