I had the aluminum version of the K-wing on a couple of bikes and, while the tops were comfortable, the reach and drop were a bit more than I wanted. I don't know if the geometry of the carbon model was any different. I replaced mine with FSA's Omega Compact bars which are more comfortable for me and allow better brifter positioning.

I do notice that neither K-Wing is listed on FSA's current web site so they may not have sold well.