I love my Kenwood unit. I had the 4000UB before and hated it. The fact that I had to ground my RCAs just to get rid of some stupid noise is ridiculous. My Kenwood is easier for me to use, especially with an iPod or large storage device. Also has some extra features over the Pioneer. As others have mentioned, the only real problem is when the sun shines on the face plate. It makes reading the layout pretty hard. Although I think most units will have this problem to some extent. Go with the Kenwood, you wont be disappointed.