I hope this helps anyone interested in using the Q10/Q5 pro as an NZB downloader. I've recently setup NZBGet which in my opinion is one of the better downloaders out there and it works well!
Please see:
https://github.com/nzbget/nzbget/wiki/Installation-on-Android
Once you install and start the daemon from the apk listed above you can access the web front-end easily from port 6789. I previously had NZBGet running on my Netgear NAS and the Q10 pro gets about twice the speed so I am very happy. The one catch is you have to enter the IP address of the newsserver vs the domain name but this is only a one-time issue during newserver configuration.
Since my Q10 pro is the only media player I have that reads Bluray ISO's it made sense for me to download directly to my internal HD on the Q10 pro.
The only step I have not solved is how to get the daemon to run at startup. Currently after the Q10 pro powers on I have to start the daemon using the app.