In the past we have, sort of, reviewed many custom ROMs, like CyanogenMod 12s, Oxygen OS, CyanogenMod 12, OmniROM, SlimKat and more. Here at XDA we live for custom ROMs. Whether they be huge community efforts or the tinkering of a single person, custom ROMs help unlock more functionality to our beloved devices. Now that Marshmallow is out, many ROM...