OS X Server is unfortunately little more than a toy for tinkering with until you get so frustrated you delete it and then go about cleaning up its remnants on your system. I can’t imagine anybody actually deploying this software in a professional enterprise environment where dependability is paramount. No way would I trust this with something important. I love my Macs but there is a reason why Windows Server editions sell for anywhere from $400 to several thousand dollars and run the enterprise world while Apple has to basically give this away: reliability and functionality. I was dubious from the outset of a server which runs as a software layer on top of an underlying client operating system, but It was cheap and I wanted to try it out; after all, my thunderbolt RAID containers and all those expensive disk drives and other cool stuff could be put to good use on my network if this app worked. Well, it wasn’t to be. All I had this server doing in the end was acting as a simple file server and backup server for Time Machine on my home network. It still crashed several times a week, was a resource hog, interfered with apps and stability on the client operating system (Yosemitie and then El Capitan), and annoyingly filled up almost my entire system drive with 200GB of cached data (even though the caching option was specifically left off). My system drive went from 22GB full to 220GB full on a 256GB SSD. The reason the drive was almost empty at first was because I figured since OS X Server has to run on top of a client operating system, then maybe if I ran it on a clean install of OS X doing absolutely nothing else (on a quad-core iMac with 32GB RAM acting as a dedicated server), then this would have to make it stable. It didn’t. Sorry for the long negative review -- in short, don’t waste your time or money on this app. I love Apple but they dropped the ball on this one and it hasn’t gotten noticably better in the last year or so of updates. On the bright side it does have a pretty cool looking icon to decorate your launchpad I guess. Maybe that was Apple’s focus.