Yes! the battery life savings are insane! some report easily 1/4 longer battery. I use: When device is locked:250-500, starving voltage profile with SR. When device unlocked:500-805, starving voltage profile with SR. when under heavy use I press turbo mode button which 'timeouts' back to the above: 600-1000, starving voltage profile, screen blanking @1.5minutes. This is all automated with dbus-scripts. It allows for max battery whenThe thing is in my pocket(most of the time) and power when I am actually using it.