Since there are so many posts about Delta getting things wrong, I'll post one about Delta making a bad situation much better.

I started today (well, yesterday) on a DCA-DTW-NRT-TPE-SGN-REP award trip. (Why so long? It was the only outbound for which I could wing a 120k RT award trip.) The inbound for the DCA-DTW leg went mechanical, leaving me with no connection time in DTW. The medallion desk ended up winging two feats I never thought possible:

1) One of the rebooked legs was ATL-LAX, meaning that I managed to, through IRROPs, pull a low-level ATL-LAX leg in J on a Monday.
2) I just boarded a CI LAX-TPE flight ... in F. Again, through IRROPs, I've managed to get an international F flight with miles.

Bravo to Delta for making what could have been a very nasty situation amazing.