anybody tried an eclutchmaster racing clutch?

I searched but couldn't find anything in the stangnet threads about this company. My clutch is chattering like a crackhead on redbull and it's time to replace it. I found a stage 2 'eClutchmaster' kit on eBay and can't find any reviews on them that are mustang related. I'd rather not spend $400 on a spec when I can spend $170 on this bad boy but if it's a POS than please warn a brother. They state it can handle 480hp and seem pretty solid as they move these things like hotcakes to ebay stangers.

Here is the direct link to the clutch:
***Welcome to eCLUTCHMASTER.com***

Thanks in advance!