I haven't had much time with it since I only bought it a few minutes ago, but I do have a lot of experience with the free version of Ideaverse and with Nick Milo's Linking Your Thinking course, and with Obsidian Flight School.
There are many great features here, whether you want to adopt the whole system as-is, or learn new ideas and adopt techniques or approaches for yourself, or take pieces like the pre-built collections into your existing Obsidian system.
I look forward to exploring, learning, and improving the way I work with inforamation.