Seems like this is the "review" thread, so I'll post my thoughts here.
The Order 1886 is a facinating game, in that it may not age well in the long run (any game relying on impressing with graphics look silly eventually), but will be a killer app for the PS4 once it is marked down to Greatest Hits price. It's 50% third person shooter, 5% murder stealth & traversal, 45% interactive drama. The TPS gameplay is competent and made interesting with some sweet guns; yet I often found myself wanting a quick 180 turn ability, a dedicated melee button (rather than a contextual button prompt), and a better camera solution for when your back is against the wall (at which point your big dumb head takes up over half the screen).
The interactive drama aspect is as good as that seen in Beyond Two Souls, but without the illusion of choice that title presents. What many have labeled QTEs are actually just contextual button prompts for the defacto "interact" button, Triangle. The "boss QTEs" are fun, to the point I wasn't even mad that the final encounter was one. Due to the nature of 1886, I was often taken by surprise when other QTEs would pop up, failing them because I thought it was still cutscene or reacting with a normal gameplay button rather than the arbitrary Circle it wants.
The stealth and traversal (apparently the Order all studied with Sir Francis Drake) are all workmanlike. And that's the crux of 1886's failings - unremarkable gameplay propped up with many cool ideas, mostly the setting and the seamlessly cinematic flow of the game. The game isn't bad at all, but you will find yourself wanting. Perhaps RAD will satisfy with the implied (and, lets face it, inevitable) sequel.
Verdict - Good (3/5), worth buying at $40 ($60 if you're impatient). The soundtrack fits the game well but is probably only worth buying separate if you collect movie soundtracks, with only the title theme really stuck out as being remotely memorable.