Pros: Sweet, affectionate, calm, great mothers, fluffy, and easy to raise.
Cons: You'll end up wanting 50 cochins.
My first cochin was a plain little red girl, and she was the bomb. She raised three broods of chicks each year, and she'd come up when we called her name to get petted. Cochins make the best pet chickens, because they're so personable and sweet. They're calm around children and aren't flightly. They're just overall awesome chicks. I will be getting a couple more some day. :]