M2Tech HiFace - using it? Like it?

On the Tweak Geek website this little gizmo looks pretty slick and a much simpler way of converting USB to SPDIF. My Pop Pulse does the same thing but it is bulky (by comparison) and the USB capability is terrible at 44/16 max. BTW I use a Mac Pro and iTunes.

If you are using the M2Tech I would appreciate your feedback.