The possibilities are endless
What do you like best?
I love that everything I have can go in one place. It's like Evernote and Trello combined but with the capability to sort in so many different ways that you can look at just what you need to see when you need to see it! Additionally, you can go as many layers deep as you need to, which doesn't work in Evernote, for example.
I also like to be able to easily keep and track personal projects and my reading in Notion, and have the ability to customize how everything looks.
I've even written blog posts in Notion and cut and pasted them into my ESP easily, with a few format tweaks.
What do you dislike?
Although you can use it quickly and it's pretty intuitive, it takes time and study to really get the most out of Notion. But I can see the potential. I'm just scratching the surface but I use it daily.
What problems are you solving with the product? What benefits have you realized?
I have all of my business information in one easy to find spot which saves me time and energy. Also the search is excellent if I need to find a tidbit of information somewhere.