The Suncoast Audio video was informative. They clearly stated that streaming services, streamed internal and NAS are processed and sound the same. All files are loaded to cache and played locally from cache. Given that some of you can hear a difference suggest that some difference in background processes must exist.
They clearly believe that the N20 is the sweet spot, but that the N200 is the best transport value for USB only. The choice depends upon how your DAC handles USB vs coax/AES.
All of the transports, except the battery powered W20SE have been updated within the last couple of years. All now have transformer isolated ethernet inputs and the newer lower powered Intel chipset.
This video was a really good Aurender sales presentation.