Is Notion that good?

A lot of people seems to adopt Notion. I haven't used it yet but I can imagine what is it. I usually just use documentation feature of whatever task management software I use, but making sure I can easily export it at short notice. Currently I use Fibery - not promoting, but it should be pretty similar with ClickUp, Jira, etc. Is Notion really that good? btw, I prefer to write in Markdown since I am developer.