Im a father too, i have a little boy who as i write is coming up to 3 and a half. Its fantastic being a father to my boy, he gives me so much joy. Watching him sleep brings a huge smile on my face. He's at that age where everything is interesting. It also gives me an excuse to be a big kid again lol.
When i first found out my wife was expecting, i jumped for joy and i must say i don't think i have come down yet, even 3 years later. Yes being a father can be stressfull, and they can make you feel like a monster for telling them off. But it trully is the best feeling for a man.