I ended up grabbing the trilogy for $40 on a sale. Was already thinking of grabbing the Remaster because of the previous owner deal so another $20 for the other two games isn't bad. That said, outside of a bit of Demon Souls and Bloodborne I've never played a Dark Souls game so should be an experience. I've heard Remaster has a lot of issues with invaders hacking games. Not sure if anyone has had an issue with that or not. Friend of mine has a script to backup his saves often.
I've read of an offline mode while playing but is that in this game or another one? If it is in does it change anything outside of invaders/coop?