Positives. The concept for "Lore" is fantastic; the continued ever repeating cycle of rulers dethroned by subjects and houses that hold onto cruel traditions to have a shot at killing a god... But in practice, it was a bit of a mess. I liked some of the twists, such as spoiler 

Gill being revealed to be the original Hermes (even if his motivation for taking Lore and Miles in was very unclear and he should have been reinstated as a god for his actions).

Unfortunately, this novel was too ambitious, leaving a lot of plotholes to be filled. 

Negatives. In spite of the intriguing worldbuilding, New York feels empty. If you're going to set your story in New York, write about New York! If your character has fallen in love with this city, make us fall in love with it too! 

Rather than telling a cohesive story, it felt like the characters went from side quest to side quest which made this (500+ pages!!) book loose its tension. Relevant information was also only brought up as soon as it was relevant for the plot which took away all the fun of trying to guess where the story would go next.