Pickles JG
First Post
It's meant for both, I think Mearls or Thompson mentioned this a long time ago. But it's ok if your DM restricts it to only retreating.
You only get AOs when you "disengage" from an enemy ie leave its threatened area so the action is only relevant when you are "disengaging" from the one enemy regardless of the postion of other enemies.
@OP. You cannot use bonus actions to attack as a general rule. The bonus attack eg flurry of blows, dual wielding state that you get the bonus when you take an attack action ie not a disengage action.
Rogues (& Goblins) do it the other way around using a bonus disengage then attacking with their action.
It is a good ability but not game breaking - eg to attack a polearm guy you would need to give up your action or be a rogue & that's just like 3e/pathfinder tumble. (& why shouldn't class features trump feats sometimes?)