Blackrock Faction Change

Hi! I was just wondering if the free faction change available for Blackrock works both ways, if it is a once-per-char-thing or similar? Or can it be used to change race/gender by simply switching back and forth? Also, does it come with a name change?

yes, you can use "faction change" 2 times to change your race/gender.
It is always free (but it has 10/15 min cooldown)

No, changing name will not work with "faction chage" (this limitation affects only Blackrock, since it is free)