For the money, it cannot be faulted for the DAC or ADC. The mic pre is fine, but the gain isn't that large. I still haven't had any issues with that though, so just beware that you are likely to be close to max gain or max gain with a condenser mic.
The headphone jack is far from suitable for anything other than possibly checking that there is sound... It works, and sound does come out, but there is crossfeed and quite a bit of distortion especially on sub 80 ohm headphones. That's what pulled the sound grade down for me.