I have my prosci, got it through work, also have done some work based out of the kotter model. I *don’t* recommend it if you just want to get into change management specifically, those people can be a bit...strange. I did find it was a good accompaniment to my pmp and general business skills as you can throw a model in here or there, and add the verbiage to your resume / presentations with higher ups so people see you have a “change management view” on what you are doing.
I wouldn’t pay for prosci on my own, it was ungodly expensive and hosted out of the rim rock in Banff. Unsurprisingly, there were a half dozen government employees in my class.
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