pretty good, but it lacks of other features like xo ,phase shift, tcr and so on. As far as I know they just plays cds, no mp3. Another advandtage or disadvantage: it looks very decent and unwanted guests will not be interested so fast. No blinking stuff, I like that.
Even their aftermarket head units look like stock head units. No removable face place, and atleast some of the models don't have onboard amps, possibly all of them, i'm not sure. Very low THD outputs.