I'm 13 chapters in. Couldn't stop reading last night, and would have kept reading if I didn't have to work today.
So far I'm really enjoying it. I've always defended that Alien belongs in space, in ship corridors, in other planet's terraforming colonies. They look silly in a modern day small town (I'm looking at you, AvP-R), and Aliens in a medieval world could turn out to be something really corny. To me, Predator was always the one that had the potential to be moved around into different settings and time periods to give us some really cool stories.
Well, Aliens Phalanx so far is proving me wrong. Maybe because its really well written. Can't wait to go back to it after work.
Also, I started this book assuming it would take place on Earth, in the past. But now I know that's not the case, hope the book gives more details on that.