The smoothing will sort out a fair amount of aliasing and make what is left less severe, and the color/contrast changes work well with the more limited color outputs these consoles had.

The thing is this works so well for ps3/xbox/wii because of the output being sub 1080

In this case, the mCable work extremely well

This works really well on the PS3 because the PS3 does not up convert content

Either way, the cord really does work, albeit, its much better for older game content than newer assuming you are using it for 1080p