There are a lot of good things to say about this game; it's creative, well-written, and has more than enough information included for the DM to make it an engaging and enjoyable time for their players.

Highlights are definitely the investigative phase near the beginning, which includes encounters with some very interesting NPCs and at least two cool places to explore, and the final combat, which is thematically very strong and has some very interesting interactions between the environment and the enemies. If things play out right, there are even some unique mechanics that can really add to the players' experience.

A word of caution, though: this expedition does suffer if the DM hasn't had much prep time, particularly that final combat. DMs, you won't regret making sure to read over the end, and taking some time to think over the map and mechanics - it'll make your life a lot easier.

Overall, the writing is very cinematic, which I personally enjoyed and felt added a lot to my experience when I was playing it. Flavour hooks are explicitly included to help the DM bring the city of Mulmaster to life, which also helps, and the inclusion of several player handouts is a nice touch.

Speaking of handouts, DMs will likely find the clue tree provided extremely helpful in organising what's happening next in what is a rather complex adventure.

Generally, Cloaks and Shadows is an extremely flavourful game, well-written, well-edited, and well thought out. I found some minor issues in the middle with plausibility and maintaining interest, and time can be a problem if you're on a strict or limited schedule - it's very easy for the investigative section to balloon, but other than that, it's a fun time.