Pros:
I personally didn't have any technical issues I think by the time I purchased the game they had already fixed problems that people were having with the game.
You can now be confrontational and low chaos (Nonlethal Assault)
They added rune and bonecharm crafting
The additional perks to Corvo's abilities are somewhat satisfying
Even more unlockable blueprints
Karnaca is very well distinguishable from Dunwall and it fits pefectly in the world of Dishonored
The black market shops.
The new pests.
The story is very interesting, breaking up yet another conspiracy to reclaim the throne.
Enemy variations (I was surprised to see a female guard model)
You can play as Emily or Corvo and there powers are pretty distinct but built around the same idea (Ex: Far Reach and Blink)
Clockwerk soldiers are pretty cool and somewhat formidable
Theres a New Game+ after you bear it the first time so thats pretty cool but I haven't tried it yet.

Cons:
They changed the Outsider's voice and it was for the worse. That bugged me a lot.
The resolution feels rushed and somewhat unsatisfying. (first playthrough Corvo-Low Chaos-Nonlethal Assault-Hard)

Pros: I personally didn't have any technical issues I think by the time I purchased the game they had already fixed problems that people were having with the game. You can now be confrontational and low chaos (Nonlethal Assault) They added rune and bonecharm crafting The additional perks to Corvo's abilities are somewhat satisfying Even more unlockable blueprints Karnaca is very well distinguishable from Dunwall and it fits pefectly in the world of Dishonored The black market shops. The new pests. The story is very interesting, breaking up yet another conspiracy to reclaim the throne. Enemy variations (I was surprised to see a female guard model) You can play as Emily or Corvo and there powers are pretty distinct but built around the same idea (Ex: Far Reach and Blink) Clockwerk soldiers are pretty cool and somewhat formidable Theres a New Game+ after you bear it the first time so thats pretty cool but I haven't tried it yet. Cons: They changed the Outsider's voice and it was for the worse. That bugged me a lot. The resolution feels rushed and somewhat unsatisfying. (first playthrough Corvo-Low Chaos-Nonlethal Assault-Hard)