Very well made. Lasts about an hour, and has replayability capacity for about nine times afterward, not to mention any other time one would wish to revisit the Arsenal.
The Warmaster definitely pulls out all the stops; Ghostmane Stalkers, Mortafires, hidden bombs, tons of Thwackers and Puppies.
Advisable to attempt with a gun.
Hammer and bomb obtained do not work at all like the ones used by the Warmaster, though this is for balance purposes, plus the fact that the bomb is much more useful when used by player characters.
Lots of ambience. Different play feel from normal missions, as Feron guides you to accomplish certain tasks rather than merely going in and killing everything. Lots of NPC Knights to cheer you on.
May lag more than other levels; be warned.