It's out, it's arrived for a lot of people.
I just received my shiny new diamond dogs PS4 and a Day One edition copy of the game. (Add me on PSN if you like: MemphisR56).
Who's playing it? How far are you? What do you like, what do you dislike?
I'm currently about 3 hours in, I got an S rank on the prologue (was really surprised, as I didn't really give it my best, but I *did* switch off reflex mode before starting the game in the options menu, which gives you a score bonus).
I started the first chapter and I made my way across the map capturing guard posts. After taking 3 with no alerts and only non-lethal takedowns, I found myself in the middle of a comms outpost with only 4 tranq bullets left, surrounded by at least 7 marked guards (and one evasive so-and-so I couldn't locate with the binos) when my suppressor broke and I proceeded to be repeatedly shot to death until the game recommended I wear the chicken hat (I politely declined).
Ammo is SCARCE for your tranq weapon. I'd recommend CQC takedowns on enemies whenever you can to conserve supplies.
Also... you should probably not waste precious suppressor integrity by repeatedly shooting at sheep and wolves for fun.