Best robo advisor these days?

Girlfriend wants to start an IRA but wants to be pretty hands off. She is willing to learn but initially just wants something she can put money into. I was thinking maybe Betterment, they seem to have a good UI.

I use Merrill Edge (not robo) myself and love it. Should I just set her up with that in VTI/BND 80/20 and call it a day?