Edit 7/19/2019:I'm happy to report that the replacement has been set up and in use for more than two weeks now, without most of the previous issues. I did still notice some flickering with the HDMI signal, but since I'm not using this device regularly with a monitor attached it's a non issue for me. Review changed to 4 stars from a currently (mostly) happy customer.(Original Review):Was in the process of setting this up as a firewall/router for my home. Life got in the way, and it sat powered on but pretty much idle for about a week. Well, that's how long I left it for, I really don't know how long it actually worked. Came back around to finish setting it up and it was locked up. Power cycled it and video on the HDMI started fritzing out. Swapped to other HDMI and worked fine for a few minutes then locked up again. Let it sit powered off to cool for a while and it finally came back up. This was the point I decided to wipe the SSD and hit the return button.I'm hoping this was a fluke, as I really like the system in general. We will see how the replacement works out (and edit review accordingly).