Untangle 14.1.1 works flawlessly. Solid performance from the quad core Celeron, the ram and SSD. In the barbone version they say you should know how to install, but don't make any mention of which set of screws to remove to Best access the board. Even under load the aluminum heatsink keeps this unit cool.There's 12 screws in total so it isn't a big ordeal if you want to upgrade.Has 2 HDMI, which is annoying (need a $10 adapter to VGA), would have liked to see 1 VGA instead.I wish there was a rack mount version of this.