This gun is awesome, It is great right out of the box, and is inexpensive. It doesn't chop balls, easily field-strippable, and accurate. the Enigma is a very quiet gun. The Enigma is an all around nice gun, easily compatible with spyder, and pirrahna barrels.
I think the gun needs a new barrel, and a auto-feeder. You need an auto-feeder if you want to shoot fast. The barrel isn't very accurate and should be upgraded.
There is no real problem with this gun, price is right, and setup is fairly nice. But like I said it needs a new barrel. I have also not seen it on any other website than crazy DAves.