These levers provide one of the smoothest and simplest shifting experiences that cycling has to offer. This model eliminates the need for many extra wires and cables, and gives your handlebars a more polished and less cluttered look. The ergonomic design fits your hands comfortably, and helps make for a pleasant and comfortable riding and shifting experience. These levers are capable of use on all terrain and in all weather, and are built to withstand the elements.
One thing to note when purchasing these levers is that they only come with a connector to integrate the levers into the set, which contains the chainset, derailleurs, brake calipers, chain, and cassette, all of which must be purchased separately.
Customer reviews of these levers are overwhelmingly positive, with the few negative comments being mainly related to the lack of knowledge that the rest of the Ultegra kit was required for use, and that these levers may be suited for those with a bit smaller hands. A review on Road.cc notes that the smaller model "should make it easier to grip for smaller hands; [his] are like shovels, but [he] still prefer[s] the new shape, which you can wrap your hands round a bit more." Shifting gears requires little pressure, and there isn't much resistance to a shift as the gear level increases. These levers are highly reminiscent of the Dura-Ace models, and for a lot less money, you can get virtually the same experience with these levers.
Overall, these levers are praised as comfortable and very easy to use, and are well suited for all levels of cyclists.