I've never played the Dishonored video game, so I'm coming at this from a newbie standpoint. As such, I really enjoyed the world presented in these pages and enjoyed the descriptions of the various Districts and accompanying plot hooks. Also the islands outside Gristol are detailed with broader strokes and some great adventure ideas are given for each island. Both the art and the writing really gave a great impression of the ambience of a gothic gaslight steampunkish world which will help any GM share this with their players.
It's a bit light on the rules, but that didn't bother me as I knew what to expect going into it. That being said, I found the idea of Player Momentum vs GM Chaos to be a fun mechanic that adds to the feel of the game.
Finally, the adventure at the end of the book is a nice gory introduction to the world of Dishonored and written so that players and GM get a good feel of the genre without a lot of prep work.
The team at Modiphius is also extremely active when it comes to correcting errors made in the original printing. As of the beginning of May, the corrections are listed in a seperate file but eventually a new file will be posted with the corrections made in the product itself.