The levels and models of Second Sight don't seem to be overly spectacular. In general they seem to be something taken out of Half-Life (yes the first one) and just don't seem to be up to today's high standards. I'm not saying that they are bad -- they just aren't awe inspiring, although the sometimes shaky camera does a wonderful job of conveying the unnerving and slightly off feel of the game.
Like the camera work, the sounds and music of Second Sight go a long way in making me feel slightly off my balance as I sneak my way through halls and government facilities looking to find out exactly what happened to my psychically-endowed character.