Full disclosure – I backed this on kickstarter and the full collection is 12 boxes. So the 4 you can get here is a good start, and won't run out of stuff to do! The minis are amazingly detailed, great to paint, and really durable due to two-stage composition.
The gameplay can feel a bit slow for those used to the video game, but there's a fair few tips and houserules on Boardgamegeek to help the experienced players amp up the tension. Also takes a wee bit of time to learn, but soon you'll be slinging bombs and hardpointing glory points.