I think it's really cool. Totally confusing, complex and alien, but cool. Only complaint is that the shooting feels like HL2, which isn't the best. I don't think it's a source engine thing because I've played mods with improved combat, and L4D feel better than vanilla HL2.
I got the achievement on the streets of a cyberpunk city where respawning men in black trench coats with robots were constantly attacking me, and at one point I went into a bar and was told to murder everyone.