Finally finished Revelations after grinding the last bit of relationships to max. Over 100 hours is a bit longer than I expected after having maxed all the relationships from the other two paths, but still shorter than maxing it out in Conquest because Conquest is evil.
Here's some of my pros/cons observations about Revelations:
+new levels are cool, especially the one with the red and blue floors that change enemy classes
+the first few levels are fun because you had very few units and it was a very tense situation
-having all of the units is a pain in the ass, since I want to level them all up
+all the new cross-game conversations is interesting, and the cross-nation relationships are good too
*I imagine Odin and his daughter Ophelia get into some really weird roleplay sex when you've each S-ranked them
*Sophie's thong is seriously distracting, I mean she's a mounted unit what the hell
+while I think Saizo-Beruka is the OTP support, Saizo-Charlotte is the funniest goddamn thing ever written
+the special conversations between Selena and Caeldori is really on-point, I'm glad I did it
*the final boss is worthy of final boss material; I mean Dragon Skin and TWO forms, one-hit kills most of my units, goddamn
-marrying Azura didn't really change the ending or any dialogue, which is lame as hell
-Azura's ending in Revelations, despite not being shown dying, is still pretty vague
-why is the ONE path where Gunter is important the path where you can't convo with him? What the hell
+Omega Yato is a flaming super chainsaw sword and it's fucking awesome
-the ending just kind of... ended
-I really hate how your character's fate at the ending credits shows up randomly in the middle of all your other units instead of at the very end like Awakening; it loses impact that way
I gave Azura aptitude right from the start, then gave her Aegis and Pavis, and a bunch of other things that made her the best and deadliest waifu ever. She, Anna, and Odin are the only reason my unit beat the final boss -- especially since I accidentally gave myself a handicap at the end where I only had Anna as a healer.
Going to do the Heirs of Fate DLC as soon as I can.