My expectation is that the DAC will be excellent, the preamp will be perfectly serviceable, and the amp section will fall somewhat flat. Jim's announcement that they'll be making a DAC/preamp only model in the same form with the same price reinforces that idea, to me.
Nonetheless, sometimes it's handy to have an amp section in a device like that. I should get it in a few days, and I'll be sure to write back here with how it sounds through speakers, estats (through transformer), and dynamics (through the headphone out).
Fun!