I just started playing, I'm still in the school bus though.
The graphics are amazing, and for some reason I'm a little bit under highest settings and jumping between 45-55 FPS. GPU usage hovers around 90%, 60 degrees C but only 464MB of vRAM used.
The realism though, oh my God...
To this time and day right now no other game has blown my mind like Homefront just has.