I dont have a problem with the DAC.iT or Peachtree, but it wouldnt be the first time that a $500 DAC has failed to 'wow' someone straight out of the box. I also believe that the premise that 'my SB Touch cost much less and sounds just as good !' is a little unfair - most agree that the SB Touch is sensational VFM - but you also need to look at the kit used in the Stereophile review before dismissing the DAC completely. I always ask myself 'Hey, how much of that detail would I hear with my amp/headphones when these guys have a 20K rig around the review item ?'
If you want a DAC with a large number of glowing reviews, google the JKDAC32. Its 500 Euros, making it more expensive than the DAC.iT, but given the money you are already spending on Peachtree and Schiit DACs which dont do the internal USB-SPDIF conversion (fwir - happy to hear otherwise), for me the extra cash seems like a good investment. As always. there is no guarantee that you will agree with the reviewers, but I'm putting it out there anyway. I would give it at least 100 hours and ensure that you follow JK's recommendations to get the best out of it.
(none of this is a criticism of the Peachtree or the Bifrost - read some of the reviews and you'll see why the USB-SPDIF conversion actually seems to make an audible difference to the end result)