I like best that you can easily set up meetings via video chat in different formats (like Google Hangout). It's also great for having quick "in person" conversations over email or phone calls which are easy enough but not as time consuming as an actual meeting would be if we didn't have it already scheduled beforehand! Nothing specific really - just overall functionality of using this service versus other similar services out there. We've been able find ways around some limitations by working together creatively when needed so far nothing has come across too much at all yet.
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