What do you mean by beta PC software? Software for controlling it (versus an iPad)? What were you using before?
I'm wondering if there's any sonic benefit of an Aurender over a CAPS running JRiver. Because if there aren't any, I can only see downsides.
He means the Aurender Music Manager (AMM) software (think: similar to minimserver for the Lumin). The AMM software is in beta testing for Windows. The Mac version works perfectly and has been out for a while.
As for the benefit, I can think of many. First, the Aurender iPad app is excellent - just like the Lumin app. Second, you have a device that is purposely built for high end audio. It also looks like it belongs on your system. My Aurender has never crashed, stopped working, etc. My CAPS did. Frankly, I just don't like using a computer modified for audio in my system. I prefer to use a device purposely built and supported for audio.
YMMV.