It works very well for me. I’m using the latest GalliumOS on a little Acer C720. I especially appreciate now how having two sources (internal HD and SD card) works very seamlessly during one back up (to external HD). No issues, no lag, and no bugs that effect my usage (default naming conventions, but separate photo and video directories on the external SD). Automatic updates are a breeze and work seamlessly. Thanks for all the devel work!