Sorry if that sounded too negative, it was only intended to be pragmatic with a touch of dark humor:
There's a new release, the quality is fine, and it's OK to buy it even if the delays continue.
Edit: @Rahul-Balaggan - actually it might make sense to lock this thread and start a fresh one, so new readers don't need to wade through 4 years of past delays and disasters to discuss the present state of the company.
Tentai has been a bit cursed so far, everything from an office break-in where their equipment was stolen to losing control of their discord server after a malware infection, but they've kept struggling forward despite that.
Their latest update is here: https://tentaibooks.com/blog/