Coursera Plus is not a course, it is the payment model sitting underneath a large part of the catalog we review here, and understanding it changes the math on almost everything else. For a flat monthly or annual fee it unlocks the majority of Coursera's individual courses and Professional Certificates, which matters a lot on this site specifically, because so many of the AI programmes worth taking, the DeepLearning.AI specializations, the Google certificates, the IBM tracks, all live behind that same subscription. If you have been eyeing three or four of those, the annual plan usually works out cheaper than buying them one at a time, and you still walk away with the identical shareable certificate you would have earned paying separately, so there is no second class version of the credential for subscribers. The catch, and it is the same catch as every gym membership ever sold, is that the value is entirely a function of your follow through.
Coursera makes it frictionless to enroll in twelve courses in an afternoon, and the platform quietly counts on the fact that most people finish very few of them, so a subscription that looks like a bargain on paper becomes an expensive monument to good intentions if you are a serial starter. It is also worth knowing the plan is not truly everything, because full degrees, some MasterTrack certificates, and a portion of guided projects sit outside it, so you should check that the specific things you want are actually covered before assuming Plus is a universal key. My honest advice is to treat it like a tool with a clear job rather than a lifestyle purchase. Sit down, make a real list of the certificates you intend to complete in the next twelve months, and if that list has three or more names on it and you genuinely mean to finish them, Plus is one of the strongest value propositions in online education.
If your list is one course, or if you know in your heart you collect courses the way other people collect browser tabs, pay for the single thing you want and set a reminder to cancel, because the subscription only rewards the people who show up.