Beyond the story this final act wasn't quite as engaging as the The Ancient Gods Part 1. I think the environments for this one just fell a little flat for me. The abandoned forts and over technofied hell just didn't do it for me. However, the pay off of finally finishing the story was well worth it.

The new demons are fine. Again they are a little more annoying than interesting in most cases (buffing enemies or debuffing you) which is a shame. I did enjoy the new platforming element involving the shotgun grappling hook, that was clever.

I ended up starting and playing this through on easy given my experience with Part 1. This made it much more enjoyable and allowed me to focus more on the enemy/environmental designs than I'd had time to before.

Overall it is a great conclusion to this story arc of DOOM.