Received this unit in around 5 business days. It might have been 4.The case and build quality are quite solid. The case feels very substantial for such a small size.One minor quirk that bothered me: The motherboard is *upside down*. Meaning, the external ports -- such as USB -- are upside down from how they usually are. So if you plug in a USB thumbdrive, for example, the indicator lights on the drive are face-down.The unit definitely gets warm on the outside, as one would expect with passive cooling. But not hot -- just warm.I was able to install Ubuntu 16.04 *alongside* Windows10 without any issues. Everything appears to work in Ubuntu.Very simple benchmarking indicates that this device will be decent for desktop web surfing, SOHO server of some kind, SOHO firewall, and other things.This is NOT a gaming machine but will definitely work fine for most office use.