So far my group has only played the first chapter. Everything I’ve read from other people has sounded like the games are close. The Gentlemen destroyed the nemesis in our game. No one ever felt the need to spend Ether so the nemesis never once got to use either of his basic powers. I’m starting to wonder if we played a rule wrong somewhere because as I said, the mission was VERY easy to win. With the nemesis only able to use his minions in the first round, it seemed very easy for the Gentlemen and bobbies to get into good position and clear away zombies in anticipation of round 2. The Gentlemen all moved towards the top of the map and bobbies cleared out the top most zombies while the damsel got behind the door ready to break through.
The first Chapter supports a "spend no Ether" strategy by the Gentlemen, and probably favours the good guys a bit (unless the Nemesis has just the right Chaos Cards or good luck with the dice).
That quickly changes in the later scenarios, though, where you'll probably see Ether flow more, and the Nemesis have more options.
For other examples of how this scenario can unfold, you can always look HERE.