I have a Science doctorate. Early in my career in the real world I was offered the opportunity to do my CIM while in a tech support job. It opened up a new world of bullst and $$$$. Never refuse a learning opportunity. It was piss easy but did make me think in new ways.
The CIM do a number of different levels from the beginner 'how do you spell marketing?' sort of qualification to the post graduate high level one. The higher ones are a challenge and worth getting, the easy ones are less so.