Boomer shooter kino is back on the menu.
Seriously though, this is a fantastic expansion to one of the best boomer shooters out there. Atmosphere and level design is top notch. The soundtrack slaps. It took about 4 hours to beat on a casual playthrough so it's a decent length, can probably easily double that by trying to find secrets. They're pretty hard to find. My one complaint is I think a few of the new enemy types and the final boss are a bit annoying.