Good enough greathammer for mirror service?

I crafted a pretty decent two handed greathammer and I was told it may be worth putting it up for mirror service from a friend.
I've never done this before so wanted to check if he was right and it is worth it.
I have to divine it to max phys but thats about all i can do.



Item Class: Two Hand Maces
Rarity: Rare
Dire Bane
Expert Leaden Greathammer
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Quality: +20% (augmented)
Physical Damage: 692-1018 (augmented)
Critical Hit Chance: 5.00%
Attacks per Second: 1.41 (augmented)
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Requirements:
Level: 77
Str: 212
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Sockets: S S
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Item Level: 81
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40% increased Physical Damage (rune)
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232% increased Physical Damage
Adds 36 to 67 Physical Damage
+165 to Accuracy Rating
28% increased Attack Speed
+6 to Level of all Melee Skills
Leeches 9.21% of Physical Damage as Life