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Edit: Staff contacted me an basically told me that I'd have to bump up my rating for all quests I have ever reviewed by one star. Note that this does not reflect my own opinion on the matter, or the quest, but just that it was something I was made required to do.
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This quest is absolutely horrid when it comes to flow. It attempts to present itself as a fairly open ended experience where you can do things in different order, but it's actually a very linear experience..., except, the game gives no indication of where you need to go at any given point. And figuring out what parts of the game you can tackle now with your current gear is an exercise in frustration management.

There is also quite a few of questionable design choices, such as that you have to leave and go buy keys in the other side of the world to progress at times. Honestly, this quest is not worth the time to play based on the design issues alone, and that does not even mention the fact that the quest has a few bugs as well as several spelling/wording issues.