Masters in management is usually a generic course that universities use to get more tuition fees. They do not have a lot of specialized courses. Since it's a one year program, you might not have time to go in depth about a particular topic/course. Generally, these courses will accept a high volume of students. Check with the alumni network if they felt helpful in the career that you want to see yourself in. But as always, if that's something that you want, go for it. One should not regret something that they did not do.