One of the best engines I'd had the pleasure of using. A lot of nifty tools out of the box with robust support for custom extension. Visual editor is useful without being overwhelming, and offers just enough functionalities without requiring you to use it all the time (if you prefer working on Sublime/VSCode like me). Documentation is a bit rough for strictly EN-speaker, knowledge of at least kana will help, but dev is responsive. Here's hoping the community grows enough to realize its full potential.