Earthshaker?

[Brawley17]

Just picked one of these up, kind of purchased on a whim since it was a good price. My SK usually rolls with the Ebon Mace/atramentous shield combo. I just wanted to have a 2hs for those situations where I wasn't main tank and needing maximum AC. Ratio is 37/70 with plus 6 str and plus 6 sta - 5 dex. Procs earthquake which is 246 damage.

My 2hs skill is terrible right now, but even with that being said this weapon seems pretty awesome for DPS (as a SK of course) considering the proc is 246 damage and double hitting for 100+. Just wondering why I have almost never seen anyone else using this weapon, it is definitely slow but with dex buffs/haste (which is usually available in a grp) it seems pretty baller.

Is this a good solution going forward for 2hs DPS or should I consider alternatives? I'm not loaded with PP (FYI) but wondering if there is any better options in similar price range 3k-5k ish.