If you're grappling an enemy and cast Misty Step, do you take the grappled enemy with you?

The range is ‘self’, so I recommend against including grappled enemies. 

It would say so, like Dimension Door

I'd say it works like a discount dimension door,considering it is obtainable at a lower level,and is only usable within range of what you can see. Dimension door could teleport you out of a house with a subject,while this seems like more of an escape/platforming tool for a lower level.

Does it provoke an AOO?

Quote from jedal5 >>

Does it provoke an AOO?

 

 Wondering this myself

Quote from Bradleydoc >>

Quote from jedal5 >>

Does it provoke an AOO?

 

 Wondering this myself

 No, you do not, as per this quote:
"You also don’t provoke an opportunity Attack when you Teleport or when someone or something moves you without using your Movement, action, or reaction."

This seems pretty underpowered to me.  The mist should offer some additional effect like, disadvantage on attacks against you or cause you to be lightly obscured.

Mr_Zrt

Underpowered? You get to take your steed with you if you have "Find Steed". Boom, instant war elephant in enemy ranks or on the other side of a pitfall. With no where to run, everything is doomed.