I really like salve maker and how it's competent beyond ffvs 'mix is OP, but I hope you have a spreadsheet handy'(Potion + phoenix down is pretty sweet though). Good passives, manufacturing attack items with experiment is cool(And another of those abilities that works well specifically because of the brave system) and first aid is the kind of heal I'd like to see more of in rpgs, a preemptive one. And if you want to mix stuff with compound some of the tooltips pretty much tell you 'mix this with a elemental item to lower resistance to that element.'
In fact, the tool tips in general in this game are pretty great. Hit x and they give you damage formulas, tells you stat caps for buffs and debuffs, tells you how many turns things last and if there's exceptions to the rule with how something works it tells you. This is information I want games to give me. I want to know how things work and I don't want to have to go to gamefaqs to find out.