I did the 5 day foundation and practitioner course in 2009.
I worked in a live services (service operations role) and mainly did it to understand the language and terminology used by project managers trying to throw things over the fence.... I mean, transition services into operations.
Was it useful ? Yeah. I think so. It's probably the industry qualification for project management that every HR cv sifter looks for, and if you don't have it, you could for totally stupid reasons miss out.
I had never done any project management work previously - other than been a stakeholder - and I found it quite intense, covering a lot of material, and having to do reading and exams each night.
If you've done project management, I won't be that bad, just dull like Will Gill states. Like ITIL exams, don't try and put sense into the learning, just accept it is what it is and repeat in the exam.