Brecht's easter egg surprise: Modernizing shading and rendering

I can’t get what am i missing in the AO bounce feature (simplify panel). I can’t get any useful result with it, just overbright scene unless i use a very high count for bounces (5 and more), and still something seems wrong.

It would be perfect if used the World AO settings and skip n bounces from there, from those settings, instead it does not.

Anyone used it successfully? Lets forget the Blender classroom demo scene BTW.