The ability for multiple team members who are in various locations around our campus or world be able connect via video conferencing at any time day night! Our teams can quickly build their own training videos which makes it easier than having everyone drive across town together everytime we need help from one another over something that needs explanation (i use this tool often).
I wish there was quicker access into my mailbox so i could check if someone had sent me anything new before logging back onto crossbox again though otherwise its great as long you're using your outlook calendar properly since everything should show up when logged off of CROSSBOX.