1. Yes, the subscription model is suited for common lounge as it is one of the main pricing features that attracts it's subscribers. Unlike other online course sites, commonlounge's subscription model allows users to finish as many courses as they want in the allowed time frame, without having to pay for different courses separately, which makes it look cheaper.
2. The pro plan @29$ per month seems a bit too much for new users. They still don't know whether investing that much is going to be worth it. I would suggest somewhere around 19$ a month to allow users to understand the experience of it and evaluate accordingly. Or perhaps with an early discount of 40% on the 29$per month plan to encourage new users to sign up.
3. Similarly, for the plus plan @299$ per month. Not many users are gonna sign up all over the world. It is too high and users will hesitate paying so much for courses, the quality of which is...
Metrics for Commonlounge-
1. New subscription by new users.
2. Purchases by current users.
1. Time to complete a course
2. Search for courses
1. Sharing content
2. Projects and courses completed
Primary User persona- College students
-looking for additional courses to add value
-looking for developing new skills
-Understanding whether a particular course is what they actually want to take up for their further studies or career.
-Look for online ways of education and certification
Additional user persona maybe that of a professional.
-looks to create a base for the job he is yet to join.
-updating his knowledge of the work he does through courses.
-building and adding value to the CV
-Keeping up with the current trends and methodologies of his line of work through short courses to keep him updated.
The following is the Excel link to my answer. ( There wasn't any option to attach the file)
Top-down- There are around 1,56,000 jobs available(Total market size) as product managers in the US. Assuming that college graduates would wish to take up courses to be well oriented in this particular field, the target market size of Commonlounge should be 1,56,000.
Bottom-up- In the USA, there are 4 major Universities teaching product management. If common lounge can collaborate with such colleges and integrate it's modules with the syllabus of the students studying in these colleges, it's market size will become the number of students studying the product management course in these Universities.