For me, the TagNPlay app is well designed and has very good usability, but it has has some annoying instability issues (mine freezes for about 30 seconds about 50% of the times I switch to the app). Not sure when PSA will resolve this but this stuff is so cool you put up with it. Frankly, since we are dealing with computer networks here I had expected a complete stability and configuration nightmare in the first release (which is also what one of the beta testers I personally know reported), so I was pleasantly surprised.
I reported in a separate ("First Impressions") post that to me the bridge sounds about as good as my Marantz ud9004 used as a transport. It is not the "killer" digital source that makes all else short of the PWT sounds 2nd rate. Many others reporting on the PSA site report similar experience. Not really a huge surprise either, because you cannot make the DAC sound better than the DAC. I suspect with a top notch transport over S/PDIF you can get 95% of the performance potential of the DAC, and the bridge will give you the remaining 5%. But both at 95% and 100% the sonics are excellent.
I reported in a separate ("First Impressions") post that to me the bridge sounds about as good as my Marantz ud9004 used as a transport. It is not the "killer" digital source that makes all else short of the PWT sounds 2nd rate. Many others reporting on the PSA site report similar experience. Not really a huge surprise either, because you cannot make the DAC sound better than the DAC. I suspect with a top notch transport over S/PDIF you can get 95% of the performance potential of the DAC, and the bridge will give you the remaining 5%. But both at 95% and 100% the sonics are excellent.