I caution people to use a Privacy card [0] when subscribing to this service. There was no clear way to cancel or pause my subscription (maybe I didn't look hard enough.) Two months in I wanted to pause due to COVID-19 but simply closed the card instead.
I have no way to unsubscribe to the e-mails that keep coming in. The author should be careful here -- people will report and blacklist your domains.
It is not easy from visiting the main site that Japanese Complete is in beta. The site has promise but it's not worth $50.00 / mo right now. I strongly recommend:
1. Fleshing out all the missing lessons; there just aren't enough yet.
2. Add audio to all the lessons. I can't tell you how frustrated I was to lose audio after merely a few lessons.
3. Audio should play upon selecting lesson paragraphs. I want to practice along with (or re-listen to) text without scrubbing some audio player somewhere. At the very least least make the audio player a popup window.
4. The signup / login flow needs serious improvements, as discussed elsewhere in this thread.
Good luck. You have unique ideas not seen in typical texts: the animal stories, Iroha poem, Kanji frequency analysis, etc. but the system is too rough for the current asking price.