IWS has helped us with many things since we have been using it for more than 3 years now - mostly file synchronization between our internal network & customer networks as well as backup of data storage devices (iMacs). It works very stable even if you are doing large transfers or backups from time-to.-time but most important part about this tool was that they were always there when needed! We had some problems before regarding security issues while connecting two different domains together so as soon their team came up immediately after hearing what problem faced by me in my organization solved them within minutes without charge too!! Yes definitely worth checking out. File transfer needs no comment here just give try once its free forever. ! Security issue solving during connection process which took weeks ago!! Great job done guys :).