Coursera Plus gives you the whole catalog for one subscription instead of paying per course. At the public list price that is 59 euro a month, or 708 euro if you keep it for a year.
Whether that is worth it comes down to one question: how many paid courses would you have taken otherwise?
The break-even point
Individual Coursera courses and specialisations are typically priced between 40 and 80 euro. So at the full monthly rate, Coursera Plus starts paying for itself somewhere around the tenth to fifteenth paid course in a year.
That is achievable if you are studying full time or working through a long specialisation. It is much harder if you are fitting courses around teaching, research or a job, which is most people in academia.
What actually changes the maths
Three things push the calculation around more than the course count does.
Certificates. If you need the certificate rather than just the material, auditing courses for free stops being an option, and the subscription looks better.
Specialisations. A five-course specialisation bought individually costs more than several months of the subscription. If you are committed to one, the subscription usually wins.
Time. The subscription is a rental, not a purchase. Every month you do not study is a month you paid for nothing. This is the part most break-even calculations quietly ignore.
Where the academic price comes in
Universities do not pay the public rate. Coursera licenses access to institutions at academic rates, which is why a student at a partner university often has full access without paying anything personally.
That route is what this service uses. The access is the same Coursera Plus, on your own Coursera account, with certificates issued by Coursera in your own name. The difference is the licensing route, not the product.
At 45 euro for a year rather than 708, the break-even question mostly stops mattering. One paid course would have cost you more.
The honest caveat
An annual subscription still only pays off if you use it. Buy it because you have specific courses in mind, not because the price is low. A cheap subscription you never open is still money you did not need to spend.