If you go with this game, there is no going back. It is by far the best Dark Souls there is. (Almost) Everything they did wrong in Dark Souls 1&2 was made right here.
I'd only wish the multiplayer was more polished, it is a shame, but atleast you can play with a friend or just alone. It is still an exceptional good game.
Even the DLC (Ashes of Ariandel) was really well made. It wasn't too long or too short. It was interesting and fun to explore. I wish for more of this kind of DLC in the future. I'll happily invest the full price for it.
Anyways!
The pros and cons:
+Gameplay (fair and skillbased)
+Graphic
+Replayable
+Story (isn't as convoluted as in the past, but that is not necessarily a bad thing)
+Satisfaction (you'll know what I mean)
+- Multiplayer... it is better than before but hacking is still easy, even though I must admit in all my time in Dark Souls 3 I never saw anybody obviously hacking.
Well, I can't think of anything for the cons part, other than the multiplayer.
Praise the sun.