I would have bought 7 rebirth by now, but a full priced game is a bit of a lift for me ATM. 16 was really good, imo, and comfortably exceeded my expectations.
Agreed, 15 was a huge let down for me because I didn't take a college course on the lore and watch the movie and all that, so I just kinda went through it like "okay, and...?" And then the game ended.
It's definitely among the best and most powerful narratives I've played through. Up there with Last of Us 1 and 2 (although I'd put it solidly 3rd, behind those two).