I've tried it one evening just to understand that there is nothing better than nvim for me now.
This editor is cool, yes, but I don't know why should I use it instead of simple terminal + tmux + nvim. Maybe if I had no my own config it would be great to have c++ and etc. language server from the box, but that's all. The main idea that it provides fast start and it plays really fast starts to fall apart when you want to add some new features because you have to add it throw json config, then it doesn't metter where to add it in your own nvim config or in theirs json. I can assume that a lot of people really don't know how to use vim and this editor is going to change their mind. So if you are still using Clion or some other IDE feel free to try it.