I have one and it's fine. Quiet, stable, balanced, reliable. I've had no issues.
My only complaints are the weight...even though it's balanced it's heavy after a long walk to/from the treestand.
Also, the cranking device, IMO, is set too low on the stock. Seems to put alot of unnecessary downward pressure on the sting while cocking with the crank.
I should note that I only bought the cranking device to cock the crossbow from the tree if needed. Thus far, I've not needed it. I use the rope to cock it before entering the tree. At 140lb draw weight it is relatively easy to cock.