Did the "put in a code, get the PS4 upgrade of Assassin's Creed IV" thing, played up to the point I Get to HAvana, and HOLY SHIT It'S GORGEOUS! Not even kidding. Everything runs so much smoother, The graphics are naturally greatly improved, shadows don't look like glitchy patchwork, Framerate is stable, animations are even better than they were, and when you go into thick brush to hide from enemies or animals, YOU ACTUALLY HIDE!
And the controls actually seemed better. On PS3, I found Edward tended to kinda go whichever way he wanted, and accurate jumping required more than a little bit of fandangling and trial and error, but in this one, he always goes precisely where I want him, he climbs as I wish, and....damn, after playing the PS4 version, I honestly feel as though I gave the PS3 version too much credit in the performance review.
Damn this is gorgeous.
My Console Library:
PS5, Switch, XSX
PS4, PS3, PS2, PS1, WiiU, Wii, GCN, N64 SNES, XBO, 360
3DS, DS, GBA, Vita, PSP, Android