What are the advantages and disadvantages of barn-laid eggs?

"Advantages include: Hens are protected from the threat of predators and the outdoor elements, Hens are able to move freely inside the shed, Hens can enjoy increased social interaction with others in larger flocks.
Disadvantages include: A greater occurrence of manure-borne diseases and parasites, Greater difficulty identifying and treating sick hens, A higher likelihood of injury among the flock due to feather-pecking and infighting."