Class Enhancement is the first of several skills you have in the Stats section that provide a few unique properties to your levelling pace. For starters, unlike the previous four (Melee, Magic, Defense, and Recovery), any levels gained in this will *not* count towards your gaining a level. While this seems like a negative, it isn't necessarily that -- if you wish to sit and grind a group of enemies without wanting to out-level them, you can swap to CE so as to still be gaining experience in something without hampering your ability to get trophies. Now, having said that....Class Enhancement is a poor skill for overall advancement. For your average class, they have bonuses that range in the "5% (up to 15%)" range. The unfortunate part of this number is that it is confusing for some -- the "