Really, really good map. The architecture, texture work, and overall aesthetics were all spot-on, and the level oozed atmosphere and a sense of dread (probably aided by my playing on Nightmare). Flow matched the aesthetics, with a spiraling layout and linear progression that had next to no downtime, a great underwater section, and a bunch of enjoyable set-piece fights. Some of those fights were maybe a bit... standard, in terms of enemy choice/positioning/concepts, but they're executed well for what they are, and none of that stopped me from enjoying the map greatly anyway.