"My impression is that the release of the new version this year was somewhat rushed"

Nope. Documentation is late, software is not. The software itself is one of the most stable compared to previous releases. If PDF file will make a significant difference in your music making, you should wait.
But...those who are brave enough to use it without that PDF file, I assure you, the main star of the show - UI is easy to understand and logical. And if on the way you encounter a question or two, I am certain someone here will help you ASAP.