My initial opinion of Wheloon was pretty low. Maybe a D. After getting to know the quests better and using the area to get Oversword PDK, I've upgraded that opinion to a C+. I like the Wildy. I LOVE shadows - can you say CREEPY!!! I like the story, though it could be stronger. I like the quests, almost. That is, designed-in Red Dungeon Alert is massively Bogus. Redesign these with a smarter challenge mechanic and I'd up the score to a B-.
Where Wheloon falls down is the atrocious pink puke we have to wade through. The dev responsible must have had some bad tummy trouble, and thought it up through his Pepto Bismol fugue. Lag inducing, ugly, annoying to see through, annoying to fight in, Lagmo Bismol. If it wasn't for that crud, I could see giving Wheloon an A-.
Of course, the chain needs some mob diversity and a RAID, but overall It's a great new area. Just please reconsider the putrid pink puss we have to play in.