I agree with Kit, I think the difficulty level in CT is perfect. Bosses are usually hard, and there's always a tactic needed, you can't just choose attack, attack, attack. Pretty much the only flaw I can think of are the graphics. Yes, I don't think the game looks particularly good. I've never been a fan of Square's SNES graphics (they used the same style in nearly all of their SNES games), but they are all right of course, and technically rather impressive, but I find them boring. The game controls are also very clunky, just like in the Mana games.
But who cares about those things, the game rocks!!