I use GalliumOS on a daily basis for work and play. I found the installation process to painless. MrChromebook's firmware seems to work perfectly, even when restoring stock firmware, or going " all scorched earth." It works so well, one may be tempted to try other distros. But I've found the stability and keyboard support in GalliumOS too good to pass up. Recommended.
P.S. I do wish we had fresh mesa.