Love this game, been playing the Hard Mode beta with full randomiser on. A couple of things I've observed in doing so:
1) Some conditions are a nightmare to get rid of and can put a stop on your progress. Slime has been a real barrier, I've had a girl go from 0 to full Slime in one turn with the changes and have not been able to get hold of a Solidifer for anything. As Lilina is stuck as one, I can't finish the gallery and therefore progress further in the game. Faceless Maid has had similar issues and I'm sure there might be a few others. It might be worth having the merchants sell a "cure all conditions" item for either a high fee or some other cost (Maybe whoever uses it loses a level in their main class or something?).
2) Item distribution is a bit hit-and-miss. I've gotten 10 mask fragments, 3 gambler's tickets, 3 government letters and an one extra spellbook than required but have yet to receive tickets to access the stadium or circus. The stadium still lets you in after you pay the money if you have the ticket or not, but the circus is a no-go. It might be a good idea to have the game limit how many of the key items it gives out, so once it hits, say, the 5 mask fragments needed, it doesn't spawn any more to allow other important items a chance.
3) Some of the fights are a bit unbalanced with the hard mode changes. The Laelaps bounty hunters are a bit too lethal, they can quickly chain together putting collars on party members and hitting the button and can, if they feel like it, two turn you as the Captured state means no one comes in to replace them. Meanwhile, I've cheesed a few fights on accident because of boss enemies focusing solely on a party member they can't get rid of. I beat the bonus boss lady (the one in the manor in the castle town) pretty much because she became obsessed with mindbreaking a slime that couldn't be mindbroke.
4) Rokkas appears to be bugged, after the first few rounds the battle just stops with no options available.