The Duet 2 is just as simple to use as the original Apogee Duet. The interface is incredibly simple, as Apogee makes using the preamp headphone monitor levels very easy to access for the end user. The manual is incredibly concise, but the truth is, the device is just so simple to use that most people should not at all have a hard time getting into learning how to use the Duet 2 at all. And for beginners, I could not think of an easier interface to start on.
Everything that the Duet 2 is is fantastic. The preamps are absolutely pristine and offer an absurd amount of gain. Ribbons can be run through this thing without having to kill the knobs or the levels. What is more amazing is that these preamps are part of the interface, and that the interface's converters are so good that they appear completely seamless. The sound is completely professional, and you can get it well before you hit the 4 digit prices with the Duet 2.
If you are doing most of your work inside the box, this is pretty much the quintessentially perfect interface for you. There really is nothing much more to say. The Duet 2 is perfect for what it tries to be.