What I like is the nice and detailed town of Longacre with all the characters that populate it.
The NPCs are nicely fleshed out with their motivations and background.
The history of the Glorious Reclamation opposing the Thrice Damned House of Thrune gives an interesting context.
The art is wonderful as it is in most of the paizo books.
But the first and foremost advice about playing the adventure - as written in the adventure - is: Don't be a jerk! Well, I thought being a jerk is an essential part of being evil. Killing your companions might be a tad too much, but people who can't differentiate between their player friend who they like and his in game character, who steals from their character for the fun of it, should stay with heroic APs. Just my 2cent worth.
But it doesn't stop there. If you take Rise of the Runelord for example, you start with a fair and one page later you are leaving a trail of blood and dead bodies all through the book. As good heroes.
Here, as evil characters, we got through half the book without killing anyone, because we're not supposed to. Every NPC quest giver whines about only roughing them up.
When I think about playing evil I think of Bonnie&Clyde. This is not it. Here you are at the lowest end of a LE Kingdom and have to adhere to the whims of those ordering you around. It's like it was written by a paladin who wanted to rub it in, that being evil is no fun at all.
Or maybe I'm not evil enough to understand that I shouldn't care about what the adventure wants and should go marauding and killing through town anyway... muhahahaha.