Soloed on a lvl 61 hunter with only hellfire quests and hellfire ramparts gear.
newly tamed ravager to tank it with only bite rank 6, gore rank 6 and cobra reflexes skills. nothing else as he wasnt loyal enough yet..

just healed my pet and blow cooldowns and he was down faster then you can say PEANUTBUTTERJELLYTIME.

Respawn rate on her is fairly fast.
as i ran out of cave after killing her i met a ally party that just had time to kill one alpha and then she respawned.

Respawnrate. max 5 minutes.