I had some KDW 245s and they were pretty good. Traction was good, but they did follow grooves fairly often in the road. The only negative is that the tires wore fairly unevenly. Mine wore real bad up front on the insides to the point that I could see the belt. The outsides had some wear left, even though my alignment was never that bad.
Rain driving was great on the KDW and was much safer than any tire I've used before, especially the stock Goodyears and Summitomos.
Now I get my alignment done every 6K miles. Minor adjustments are needed, but now my tire wear is dead even across each tire (Kumho's).