Not for me at all.
Everything happens in the last 100 pages and it was a bit boring for the previous 300.
It has all the components to make up an interesting story but I didn't really connect with any of the characters and the world building was bland.
I also have a gripe the the Minaturist bit was like an obvious plot point she just dragged up when it was convinient but never properly explained it. Half the time it felt like a neat after thought and the other half Nella just straight up asked for the pieces to be made? I think it was supposed to be mystical but at no point was my imagination sparked, and I was never left with the feeling of magic. 
Husband was an indiscrete dickhead, who basically got off on getting caught from what I could tell. 
Sister was rude, and the surprise twists were supposed to be shocking but they just felt random and tacked on at the end. 
Not sure what this book was trying for, but whatever it was it didn't get my rocks off. (Sugar or otherwise)