Ooph, where to start. Ultimately I like how well it capture being an underdog. You are constantly outclassed and poorer than everyone else. The tier system captures that really well, and how that factors in to the quality of items and assets you can attain.
I like how the dice system means you're more than likely to get complications rather than just straight successes or failures. It does a great job of creating fluid sessions with tension and release.
Also the trauma system creates organic and satisfying character arcs.
The crew feels like a real place that grows and adapts with the characters and starts to feel like a part of the city as the game continues.
The details about the factions and the world feel a bit too vague at first. The biggest challenge getting into the game for me was trying to figure out how to use the factions properly. But eventually you figure out that it's like a set of Lego bricks. There's a prescribed way you can put them together, but really it's up to you to put the premade pieces together in a way that's fun for folks at the table. The factions and world are well-designed with just enough details to let you know what they're about without forcing everyone to use them in their campaign in the same way.