I personally don't.
It requires you to spend alot more skill points and have a second weapon. You are also limited because the armor you wear is dictated by the weapon. But yes, cleric is a good choice as it is basically the healer of the game, in europe at least. It's a buffer.
I am in DESPERATE need of one!
I'll pay 100'000 gold to the first person who can get me one. And please make it as fast as possible.
If you're wondering, you can get them from some lvl 17 quest or so in both Europe and China.
And I'll be trying to get one too, so beat me to it if you want the cash, it is alot if you're under lvl 20 or whatever.
edit- ok, n/m. Didn't work out how I wanted it too but it worked out anyways.