BEST:
Weapons look'n'feel. Gritty graphics style, choice of color tones.
Although photo-realism was not a chosen style, all the materials, wood, brick, metal, feel real.
(Even with some severely lacking textures and models)
Good lighting
Cover system and bullet penetration.
Epic choice of moment in history.
WORST: Extremely buggy release - in pretty much all the game aspects.
Got released tens of thousands man-hours before it should have been.
Poorly optimized and extremely dependent on CPU performance.
Pushing some boundaries yet sticking with DX9 and classic CPU rendering, instead of utilizing PhysX/OpenCL.
As it is, recommended specs are extremely fast Intel quad and several generations old mid range gfx card.
Very small map area. Rendering distance way down compared to original.
No clear vision of where to go with the game, apart from wanting to be more realistic then some.