If you decide to extend the experience beyond the basic four or so hours by exploring the otherwise unimportant areas of the ship, then you really are asking to be bored witless. Often flanked by robot drones, and assisted by turrets, things can get hectic once they start to throw everything at you, but the outcome is never seriously in doubt.
On occasion, the game throws up resilient variants, armed with shields and cloaking devices, but even these prove to be incapable of doing anything other than charging headlong into your line of fire. Disappointingly, almost all of these little fiends are felled by a single shot, and any hope of tense firefights with intelligent foes soon fades. They cannot communicate with humans, so react with ill-advised and unsophisticated aggression. You'll want to believe that Bethesda will do something interesting with this race of alien invaders, but it does nothing more than stick to the most obvious archetypes possible.
The same applies to how you feel about the new enemies.
