While other games in the genre feel more like "dark superhero games", Urban Shadows brings the political tension of Powered by the Apocalypse to supernatural fantasy.
Urban Shadows really makes use of its base engine to hone in on the tension of horror and the political landscape.
The system is easy to learn, and has a gritty feel in its combat and consequences. Lastly, the PBTA mechanics help you create a living city with interesting characters and lore behind each of the different supernatural factions.
By far the BEST feature has to be the "Corruption" mechanic, which summed up simply is a double edged sword that gives the players access to very powerful moves all while nudging them down the spiral into becoming irredeemable monsters. This really captures the inner drama that many other games seek to emulate but mostly often overshadow with action and power fantasies.
The newly added Debt system is hit or miss. While its integral to the games leveling system, the amount of use it gets really depends how antagonistic your players are with each other. A competitive group will constantly badger each other for favors, while a group who actually enjoys working together might find their characters are progressing slowly by comparison.
Overall however, the games mechanics are too good to be overlooked, and I strongly recommend anyone looking for a narrative modern system to pick this up.