I have a Pegasus (Direct Drive) and an IV3 (Wades Extruder), I prefer the Wades Extruder. For Christmas I received an E3D Titan to replace the direct drive on the Pegasus. If I get it installed in an orderly fashion I will let you know how I feel about it.

But looking at it from an engineering standpoint, it is superior. I can go into details why, but essentially it has more torque and is about the same weight as a direct drive if I use a pancake motor.