My recent DL C+ flight (class W) credited with full PE SC and VFF points. A nice earner compared to what AA/QF now pay (and it was cheaper as well).
I have to say that I was very impressed by the service provided by DL. Far better on board than what QF and VA have ever provided in dom Y. This may be skewed a little however as it was one of their 'flagship' domestic services, JFK-SFO, but this should be equal to say PER-BNE/SYD/MEL.
The FA worked harder than I have ever seen on any airline, doing a meal service with the trolley (a large wrap and cookie, free in C+ JFK-SFO/LAX), three additional snack services with the trolley (snacks are free for all), an ice cream run (free in C+, unknown in Y) and intermittent water/drink runs (no trolley) between those services. All in six and a half hours. The FA were actually friendly as well, quite rare for an American airline.
Also, all 'elite' services were provided without issue. Priority check in, baggage, TSA clearance, boarding and baggage delivery were as advertised. The JFK Sky Cub even had a basic hot breakfast on offer.