Only downside is that the minute you leave it might crash and will remain that way until you restart the computer.
This can all be remedied if using using windows 10 x64
-set bios to restart on power loss
-set batch files to launch miners
-set windows startup to launch miner batch files
-set watchdog to restart miner on lockup failure
-set failover pools in miner
-if windows locks up, it soft crashes and reboots starting the process over automatically
I now use an even easier process, I run awesomeminer in windows, set it to autostart in tray, set each miner to autostart, set failover pools, set multiple mining software for profit mining, set watchdog to try 3x then failover....works like a charm if something fails.