Deepnote has an intuitive and simple UI – great for data science newcomers. It's fully managed so I don't need to worry about python installation and environment config. Great for newbies, great for advanced users. I stopped using Jupyter completely. I like variables explorer and the ability to share my code quickly. They are constantly adding features, so far everything was super useful.

The out-of-box Ruby on Rails integration blows my mind. Custom docker images are extremely useful, too.

I really like how Deepnote engages with the community and appreciate the constant addition of sought-after features.