If you had a competent raid team, King's Fall was great. If you DIDN'T have a competent raid team, King's Fall was rough. Depends on how you look at it. The loot system wasn't that great and a lot of the weapons just ended up being infusion fuel. Only very few of them were worth using like Quillum's, Yasmin, or Smite. That doesn't lend itself well to a highly technical raid when you have to grind it many, many times to find the items you're looking for.