If I can add: the single most valuable benefit of MPC DM by far and by large was the no ticketing deadline benefit. Sadly, this has been enhanced away last year.
(I would take the new improved priority redemption inventory as a consolation prize, but the utility doesn't come close. For example, it is very restrictive - you basically cannot access these inventory at all through the call center, so it is close to impossible to make changes or tag on another sector, etc.)