as a manager qualified by PMP certificate, I really received the lesson from PMP guide and provided the required knowledge into my daily works. I have to say the PMP skill is helpful on each territory of both project and functional management. I think that PMP is a basis to access the criteria of project management, to make all project managers on a same platform in order to contribute and conduct the project as well.
I always recommend the people to contact this course and certificate to grow up their skills with or without their previous experiences. Thanks for PMP instruction.