Nothing not to love -- a whole bunch of syntax sugar that makes code cleaner without messing around with core concepts that breaks code conceptually. It's also great to see how quickly good ideas permeate the language landscape today versus ten years ago (or maybe it's just good ideas finally permeating the landscape all at once).
From what I understand, this has been on the list for awhile, they are just working through it in each version. None of the ideas are very new at all, and could have been on the list quite awhile ago.
It is really nice to see good ideas percolate in from other places. I like the focus on making syntax cleaner and less boilerplate without being overly terse.
