This is a useful addition for anyone running a game in the Waterdeep city.
As a general city sourcebook it can function as a resource for DMs to pull out ideas, NPCs and encounters. I enjoyed the material on Tarot cards. It doesn't have anything specifically that inspired me to add to my own game. I will keep reading to get more value out of this book.
The book is nealty laid out and easy to read. Its a high quality product with poential but it may not deliver much value to your city game. Its worth a look.