Jeff Moden - Monday, November 20, 2017 7:04 PM
That was pretty much my reaction when I heard about it about a year ago from our MS Support Engineer...
IIRC, it's supposed to be able to implement it's recommendations, including the alter index, automagically.
I think my 1st comment was, "Sounds fantastic! ...<something about DTA making equally glorious promise... laughing a little>... What will we need to do to turn it off?"