If you're roleplaying, Keldorn wouldn't touch that thing with a stick. The weapon's description says it "Radiates evil like a sour odor," after all.
Then again, there's the school of thought that says that the Ultimate Good is forcing Evil tools to be used to further the cause of Good. Of course, that's a little too close to "The ends justify te means" for some folks.....
And as a little inverse twist, I like to Dual You-know-who, so he can use Carsomyr.