I've had the misfortune to fly Delta a couple of times last year. But, at least I got lucky in that they were last minute flights and the only availability was a seat up front and it was of the new refurbished cabin.
Have you ever bought something that was refurbished compared to rebuilt?
Let me put it this way, they weren't bad, but the NW cardboard seats actually have more plushness to them. I felt like I was sitting on one of those new dashboards that look like soft leather or vinyl but are actually industrial grade hardened steel.

Well, maybe not that awful, but it isn't very good either.