I played all KZ games, so I kind of knew what type of a game it will be. It's a little like with CoD games: you do not expect story to be ground breaking, mental experience of all times. No. It should be like "Die Hard" films: good visuals with story that will not ruined gameplay experience. And that's what KZ:SF is all about. Good time in a beautiful world.
Graphics is really, really nice. I love just watch this game. SP campaign looks fantastic. That's solid.
SP is rather typical. But not CoD-like typical. Just not mind-blowing-fantastic-OMG-king of a game. It's ok. Better than most FPSs I've played last few years (Far Cry 3 is an exceptions here), but still nothing too special. I guess it became the some sort of a norm now: "FPS games MUST NOT have a good story, MUST NOT have a believable characters, MUST NOT have a good dialogs..." It's all almost always on the average level. Here's no different.
Controls are very precise. I was truly amazed how different controls feels on PS3 and PS4. Here there are great. Very responsive.
I'm not a great fan of MP. I like it but only old BF games (last good one was Bad Company 2) really sucked me in. KZ:SF literally have eaten me alive. MP maps are great! At first I was frustrated because it was not that easy to get the layout, bet very soon it became the best part of MP: you can sneak on your enemies from several different directions. There are many ways out of your base and maps are full of alternative paths. Which leads to another great thing: all classes makes total sens. Because maps are well balanced it forces player to try different playstyles. I rarely get excited about MP but this one is really worth trying.
Overall I will recommend this game to almost all players. It have not bad SP and almost unique MP. Try it.