Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
As the subject suggests i'd like to contribute to the beta testing as i go through about 500-600gb data per week so should provide a good test platform, i run this on my mac as i had bad experiences on my windows PC and my linux box is a clean install with no untested software.