I agree and disagree. I think they are too fast, too easily pulled. Sneaking doesn't work. Getting chased by 6 zombies you can't out run, can't kill without an axe or gun, zombies bugging through walls/knocking the player through walls, zombies spawning in woods, all these things happening all at once is not much fun. I do agree the threat is good, because before they were far too soft for geared characters, but now they are too hard for new spawns. I think they need toning down slightly, the speed and pull range especially, damage is cool.