I have not entirely made my mind up on the new SSDO (screen-space directional occlusion). I liked, in some circumstances, the effect SSAO gave, especially on bump mapped brick textures. But I find SSDO to be quite "fizzy" possibly from the curve on the camera look values. This may well be down to settings but so far try as I might I still get this. Not sure it will be useful in an FPS situation as the HUD model seems to interact.
It does however have a very pleasing effect on "organic" assets.
I think I will "play" some more with it, see if I can reduce the "fizzing".