I've noticed that they seem to "whip" back and forth, especially at high speed...And I also feel like, at times, they don't "stick" to the windshield enough (they often "miss" spots), but yet at other times, they seem to be dragging/squeaking over the windshield, even when it is raining and there is water on the windshield. It's quite bizarre...I've never seen windshield wipers be so ineffectual, on both ends of the spectrum. (In the grand scheme of things, it's minor...But to me it's very noticeable, and frustrating that it should be like this in the first place. with all of the technological advances in the car, how hard is it to have wipers that work well?!)