I'd like to hear it.
Zombie Fortress just had its first release and I don't honestly expect to have everything fully balanced just yet. If you see something you don't like, please e-mail me at zf.feedback@gmail.com and tell me what it is.
One thing that I need a lot of feedback on is how often survivors or zombies win and what's fun (and contrastingly, not fun).
There are some things that I can't do (right now) and that is having programmed bots and zombie skins. These are technical limitations.