After going through all the main events in TPP I can say that by the end of it, with the truth and twist revealed along with hearing all of the tapes, everything that happened since MGS3 up to this point in this alleged saga TPP turns it into a fever dream. And I'm okay with that given how the context of the series radically changed post-MGS2.
Also, the ways everything comes into "full circle" it works, is not what many desired but it works. I don't agree with the views of other fans have saying that TPP doesn't offer closure when Kojima's vision is all about playing with expectations and later betraying those same expectations. And incidentally, in that sense I'm sure Kojima is more than happy with the "swan song" of the series being this way.
The core gameplay is solid and the tape in which Zero visits Snake in the hospital at Cyprus is a really sweet moment and Paz's story is a roller coaster as well as somewhat frustrating if you ever cared about her since PW.
... Horse armor?