The ability for us as producers/managers of our theatre group in Australia to keep up with all aspects of production management from booking actors to selling tickets is fantastic! I wish there was more flexibility around ticketing - but that's not really something we're looking at improving right now.
It would be great if it could link into Eventbrite or Ticketek etc so people didn't have to remember multiple passwords. Also being able to see what other companies are doing across different areas like sales & marketing has been very helpful when working together with them on upcoming projects.