I don't think the Alien is being used correctly. I like how he set up the neomorphs, and how he was able to film the suspense leading up to the births of them, however after that he treated them like common monster movie monsters.
The Alien needs to be treated with suspense almost always.if you just show it running around the ship then it's gonna get old quick.
I personally believe the Alien needs to move to TV with a series on FX. As a movie I don't think it's gonna work anymore, and that's primarily due to the first two movies being so perfect as they were.
If Alien Isolation can use the creature correctly, then so can anyone.