AF 1 , LVL 44 GC weapon, 40+ Jewlery, 40+ Belt, Perform your proper rotation, Kill the adds and stun when they try to AoE, stay on the bosses as long as you can.

People severely over rate this dungeon.

For WHM, It's not as serious, just be smart and the requirements are pretty much the same.

The DPS threshold for Demon Wall isn't that serious. Same goes for the final boss. Anything higher than the requirements I listed is just fluff to make the run faster.

Just use limits smartly and pay attention and the dungeon is far from difficult.