Simple note taking that just makes sense

Notion is quite simple to use. The shortcuts can save quite a bit of time once you are used to using it, so even fast / short form notes can end up quite well formatted and organised.
However this can also be a negative point, given it can sometimes be difficult to figure out formatting options when you don't yet know the shortcuts.

Notion is really well suited for those moments where you just need something to quickly document your thoughts.
I often have a single page that I use as sort of a continual notebook that I can look back if needed.
I also use it for documenting specific events, like meeting notes, training courses or a scratchpad for a specific project / topic.

It is less appropriate for formalised documentation or situations where you would want to publish / share a document around.