Well... I personally as somebody who likes to play RPG games, have to say that CT is a very good game, BUT even with its special combat mode its basically just one of these round based "kill creeps and level up so that you are able to defeat the next mangastyled boss" games...
It is true that it is very very complex, good animated and all that stuff, but people who don't like the genre, or people who are just sick of these kind of games, because there are too many of them, will just throw it away.
So maybe it is overrated. :?
I personally think that Diablo II is overrated. It was fun to play in the past. But after you tried all characters out and beat the game a few times, it is just always the same...
I never have beaten the last mode (I don't know what it is called in English). Not because it was so hard! Just because I got bored and prefered starting to create a new character.
Right now I think it is just annoying! Hell, some people even are calling it a RPG!!! :x