I got it a few days back and finished it like a few days after then
All in all, I like the graphics and everything, ran pretty smooth most of the time, sometimes went slideshowy, dunno why, there wasn't much exciting stuff happening at the time. It's really aimed at those only that liked doom I think (Playing by yourself all the time without backup). I prefer going around in squads of AI
*spoiler??*
Only happened once while following a civilian in a dark area, which I thought was quite cool, but as usual they get killed at some point! All the time when I think, cool I'm gonna group up with some marines or get some backup a monster kills them before I can get to them
*/spoiler*