I just installed and tried it out on my karma. So far it’s horrible, it took over 5 minutes "Connecting" to the karma, while consuming 100% cpu, and around 30mb of ram. After it finally "Connected" in the riorad explorer I would get “karma has timed out while connecting” error message.
The web interface was also dirt slow, but my guess is it was generating static html files from the database the first hit.
I was hoping that their explorer might give me access to the root web directory on the karma, but its mainly just tree menus for each of the different soup views that are already included in rio music manager.

So far very unimpressed with this software