I didn't care about the stats level up cause class changing resets everything but hp. You prolly already have the best gear of the demo. Ideally you get the higher level magic and healing. If you doing the translated verison I think that's the easier cause doing all jp verison I see my spells slots really reduce. I.E revive spell is just 1 use and only learnable via book (or maybe really high level)
i'll argue that some stats have some importance since int is needed to learn spell (or at very least to learn them faster), vit is needed to obtain more hp once you level up,faith is needed for healing, speed is the most straight forward but the most usefull at high level.
That leaves with str which for many classes is uselss since it increase the carrying weight (but mages in general don't need those andthey have a bad one to begin with); and luck with is good for traps/chest (still usually theif gets a skill for those anyway).
But yeah especially guest members stats tends to be useless, but their hp gain are enormous, my mercanary mage got 350 hp gain once she level up.
Speaking of is there a way to know the hp limit that a character might have for a level up (especially guest character)?
Just so i won't make a mistake like in the example above and thinking 150 hp gain instead of the 350 one.