As much as I like the circle and I was replaying it now the KG version hoping it doesn't bug out like the original one, I will always hate that enemies get stronger every 5 of your own levels and there is no point going to any specific area besides killing bosses since you'll fight the same enemies anywhere.
Also once you unlock the skill that maxes your TP and the one that restores MP using 50TP it basically breaks the game as you can spam the strongest skills (if you don't get oneshot). That you gotta figure out, because some skills deal ridiculously low damage (like magic) and others that won't cost as much MP will obliterate the whole enemy party.
Learning skills randomly is nice, but not knowing what's good and what's trash is not.