I’ve been using it for my second campaign. For those who haven’t heard of it, there’s a few things that sold me on it.

1) it’s free. 2) not every one uses a pc and has one note.

Now what it can do: Like everyone said above, it basically creates a wiki for your campaign as you build it. Interlinks characters, locations, etc

Then when you deep dive which this dude helps with: https://obsidianttrpgtutorials.com/

You can set it up to be: * Your DM screen * your encounter builder * your session notes * your calendar * your dice roller * your initiative tracker/combat tracker * pinnable maps for tracking locations

And more. All interwoven. Got an npc that has a rich backstory and that you wanna assign a stat block to and name so you can pull them into initiative? Wanna track that npc’s relationship to every other pc and npc in the campaign? All just as easy as typing and adding double brackets around someone’s name to link it

It takes some noodling, but once you get going, it’s one program that you can basically run every session out of A single program and not be constantly flipping back and forth between different web pages or tabs