Best free visual page builder ever!

Are you a web designer or developer? If so, can you expand on your 5-Star rating? For example, can you say whether or why you think it’s better than other free (or paid) front-end page builders like Live Composer or Beaver Builder Light?

Pros
– It free!
– Elementor is super fast. preview changes in real-time, almost no loading.
– Drag and drop super easy to use and easy to understand even for user that use it for the first time.

Cons
– less feature than other page builder (but I think it more to come.)
– see some bugs Eg. Master Slider plugin not show real-time preview.

Request
– Docs for make my own custom widgets.