Multiplayer matchmaking is still lousy, but that's nothing new. Starting off against high Prestige players makes for a few frustrating rounds when you're still unlocking the first tier of weapons/gadgets. The game is disc-based, and you will need it in the PS4 to play.
SPLIT SCREEN EVERYTHING; This was the #1 reason I bought the game (not a huge COD fan, at least not since MW3); My wife wanted to start playing games with me, so I tried to find split screen games for us to play.
None so far, at least nothing non-functional about the game; See Other for more thoughts