Thanks! This is actually a main goal - create small, with the easiest API, functional library, which uses the platform for creating reusable elements.
Web components are still in development. I think the true power of them will be more visible when all major browsers will support required features and IE11 eventually will die :)
Thank you :) I am in the middle of creating more complex examples, soon will be available with code examples in readme. For now you can check my profile on StackBlitz: https://stackblitz.com/@smalluban
For the comparation, I will definitely create an article on medium or something about how far easier is to use hybrids to create for example tabs components, than create it in the React.