The theme looks pretty cool, and manages the "this is the end" atmosphere well (with couple of bonus "wow" touches like the iris door), details like the Pupae hanging on walls are also nice. While the Queen fight can be pretty challenging on Unreal difficulty I do feel like it's lacking something in it's overall execution, but that's probably more a problem with Unreal mostly using lore/backstory rather than major events happening as you play (that could have built it up more).
My opinion on the map is pretty much this. I came to the game relatively late though (first watched someone play unreal in 1998, first played it myself in 2004, finally won the game in 2007). As a boss fight it feels a bit lacking, as I'd been through video games with much more imposing and difficult bosses beforehand. The queen is a real "shoot and dodge until it dies" boss.
Still a great fight, great music track, great arena, great atmosphere etc etc etc. And the rollercoaster escape sequence is awesome.
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