Ventajas
It is an international company
Desventajas
They do not pay you.
Employees are treated in ways against basic human decency.
They will make you do unpaid work, say it is not up to their quality standards and hence is rejected, then use that same work to go forward with their requirements. And that is despite the fact that their current content (SEO) is severely subpar compared to what is possible. It almost seems like they are trying to get free work.