I avoid this flying concentration camp in the sky like the plague. They're usually cramped, hot, and the lav design makes no sense.
There may be 10-20 decent seats out of 180 on this plane- I typically don't mind flying on any DL-configured plane except for this one. It is the only aircraft I will SDC out of with regularity.
I'm hoping these already nearly-obsolete birds can at least be a placeholder for the MAX order (if there is one) and that DL isn't actually serious about adding more of the 739's to an already bloated count.