Survey Camp: This area is easy because it's the first area.
Grotto: The 10th rank enemies were a surprise, but they have as much health as a 9th rank.
District of the Stars: KI, I believe you switched the stats for the Piscean ice enemies here and the Crustacean ice enemies in the Grotto.
Stellarium: Unimatus is right on par for an instance boss, but Selwyn was a letdown! His health is 2,000 below Unimatus's and is Moon School, consequently making his power pip chance 0.
Floating Land: I was smashed to pieces over and over again with the 10th rank enemies here.
Stormriven: There is a small "hangout" for rank 9 here, but everywhere else is rank 10. I had the most fun here.
Stormriven Hall: I like the mini-instance, but the final boss there only has 3,000 health!
Portico/Lunarium: Seriously?! I had fun battling ELITES and Selwyn's clone Selenor (but Selenor has 2,000 more health).
Science Center: I tore through this place like a dog tears through meat.
Crustacean Empire: The sheer number of bosses here makes up for the sheer lack of enemy difficulty.
Chancel: The rank 10 shark bosses sure were a challenge solo, but why is the FINAL boss only rank 9?
Trial of the Spheres: Stellar Sanctum: I love puzzles! Plus, Astraeus was rather challenging, I needed help to do him. Lunar Sanctum: Easy battles, then an easy boss with an easy cheat. KI, could you not have thought of something better than "blade to make shields go bye bye"? Solar Sanctum: Mithraya was an ultra let down! After a while, the -50% accuracy charms are left in the dust as the player buffs more and more. I had no trouble with her after round 2 - she was just a normal boss then.