I have one. I have yet to hook it up to anything impressive like a 3 way component or even subwoofers. Right now they are hooked up to stock speakers. It's really nice. There are a few things I don't like but overall it is very worth it. How much did you get it for?
I got it for $500 plus tax at my local auto radio shop about a year ago. But lately it keeps having an "info 3" error message when I play certain CDs. It's getting VERY annoying.