The battery indicator seems primitive. Also, I don't know how to activate the Hard Drive Impact Sensor. The battery lasts >5 hours; the machine is advertised for ~40% more than that. I don't know how to activate the sleep to charge USB port either. I also had a hibernation issue; it froze during rebooting. I had to force-power down and re-start it. Most of the fn keys also are inactive in Linux Mint. Cannot (that I know of) change the brightness of the screen.