Pros
I like that this isn't a top down organization because OM is in 110 countries it would be impossible for the US office to truly understand the work done in and oversea all the different projects that go on in each country. Each country is responsible for their own vision of what work is needed in that country. This organization is a missions organization it is not a corporation and it is sometimes structured more like a church. The is no skill that can't be utilized within OM globally. Great potential to use your skills and grow in your experience based within a global christian culture. OM does allow women leadership depending on the culture of the country you are based in.
Cons
Each person raises their own support which for some people can seem insurmountable and is probably the hardest thing about working in volunteer support based missions. OM values family and won't take families with children over the age of 12 into new overseas situations because of experience they have seen teenagers not thrive on the field.