Well mine is a custom build with different parts, so IDK exactly how the stock one preforms. The motor is VERY strong and can fit a large coil. But from all I have heard it is on the same level with the DD9500, BTL, MT, etc...while sounding better.
For the price they are going for now, IDK anything that could touch it. They used to sell for around 400 and were worth it then. So for a bit over 200 its a steal.