I see two problems with stenciljs at the moment, but perhaps they can be fixed? 1, going back and forth in browser history, there is a flash of the footer being displayed before the actual content is loaded - it's just 1-2 frames, but very noticeable and disturbing. 2, scroll position is lost when visiting another page and going back.
Those are typical single page app problems, but they will probably not matter when using the framework for a hybrid app (no back button). If I'm to use this for a web app though, those would be nice to have addressed.