There are several issues with this dungeon, and I doubt they are intended.

The mobs and bosses deal way too much damage. I am a fairly tanky build, and even while blocking I would die one hit. Nothing is touching me and the enemies are not even facing me. I lost track how many times I died. The group I was in was pretty skilled, yet it took us two hours to complete this dungeon, never mind the long queue time, because of this and the fact that the mobs and bosses themselves, to the contrary, took too long to take down.

I was unable to hand in the quest after leaving the dungeon. After that grueling experience, I had completely forgot I had a quest to begin with. Yet the NPC I am to speak to, Tharayya, does not seem to register the fact that I have completed her quest upon re-entering. I am disappointed that after all that, I cannot even finish the quest.

Kind regards.