Just completed a 5000 mile road trip shortly after replacing the OEM Dunlop ST30's. The dry handling, ride comfort, and noise level have been improved significantly. The gas mileage on the trip was slightly less than expected, but the variation could have been due to many things other than the tires. Even if the decrease in mileage was due to the tires, the increase in performance would be well worth it. Did not have a lot of wet driving, and certainly not enough water on the road to have to worry about hydroplaning. Have not had them in any snow yet.