My Modi arrived yesterday. I've never used a DAC before so I can't compare it to the Bifrost, ODAC or anything else. What I can say is I love it. Right out of the box, I spent the first few minutes switching back and forth between my Macbook Pro soundcard right into Audioengine A5+ speakers vs. through the Modi. It was no contest! The Modi made everything sound richer and warmer. Sounds were more distinct. It was like being present for the music rather than hearing it electronically rendered.
This topic is what finally helped me to pull the trigger on the Modi. Really glad I did. No doubt, in time there will be even better, cheaper DACs as the technology continues to advance. That's why it made sense to me to save a few bucks and get the Modi rather than the Bifrost or even the ODAC. Reports like your indicated that any differences are subtle. This setup is more than good enough. In a year or two, I'll see if anything new has come along that would seem to justify an upgrade. Thanks again.