I tried it with skepticism, but the result was excellent.
Perhaps, the most important thing I will mention is the simplicity. We use AcademyOcean to train users who are just starting to use our planfix.com. I had a fear that the users sent to the academy may not understand the training mechanism and this will entail problems in using our service. Therefore, we acted cautiously: for a few months only a part of our new users were sent to the AcademyOcean (the second part of the users was trained in the form of a traditional mailing list). All this time we conducted A/B testing of conversion from a trial account to a permanent use. The results exceeded our expectations - the percentage of conversion has increased, while we have not received a single complaint about the difficulty in completing the training course. Seeing this, we went further and started using the AcademyOcean to teach the process of setting up planfix.com and even made a separate course that our customers can share with their friends to explain why they use our service.
After more than six months of using the service, we have formed only one wish for the AkademyOcean team: more fonts and themes for the courses. I must say that they are very responsive guys and have already done a lot at our request - so I think that there will be no problems with this either.